643.77 is what percent of 5150 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 5150 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 5150, so we can write it down as 100%=5150.
4. We know, that x% equals 643.77 of the output value, so we can write it down as x%=643.77.
5. Now we have two simple equations:
1) 100%=5150
2) x%=643.77
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=5150/643.77
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 643.77 is what percent of 5150

100%/x%=5150/643.77
(100/x)*x=(5150/643.77)*x       - we multiply both sides of the equation by x
100=7.9997514640322*x       - we divide both sides of the equation by (7.9997514640322) to get x
100/7.9997514640322=x
12.500388349515=x
x=12.500388349515

now we have:
643.77 is 12.500388349515% of 5150