40.2 is what percent of 49.9 - 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 49.9 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 49.9, so we can write it down as 100%=49.9.
4. We know, that x% equals 40.2 of the output value, so we can write it down as x%=40.2.
5. Now we have two simple equations:
1) 100%=49.9
2) x%=40.2
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%=49.9/40.2
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 40.2 is what percent of 49.9

100%/x%=49.9/40.2
(100/x)*x=(49.9/40.2)*x       - we multiply both sides of the equation by x
100=1.2412935323383*x       - we divide both sides of the equation by (1.2412935323383) to get x
100/1.2412935323383=x
80.561122244489=x
x=80.561122244489

now we have:
40.2 is 80.561122244489% of 49.9