79 is what percent of 1639 - 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 1639 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 1639, so we can write it down as 100%=1639.
4. We know, that x% equals 79 of the output value, so we can write it down as x%=79.
5. Now we have two simple equations:
1) 100%=1639
2) x%=79
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%=1639/79
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 79 is what percent of 1639

100%/x%=1639/79
(100/x)*x=(1639/79)*x       - we multiply both sides of the equation by x
100=20.746835443038*x       - we divide both sides of the equation by (20.746835443038) to get x
100/20.746835443038=x
4.8200122025625=x
x=4.8200122025625

now we have:
79 is 4.8200122025625% of 1639