42.38 is what percent of 52.16 - 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 52.16 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 52.16, so we can write it down as 100%=52.16.
4. We know, that x% equals 42.38 of the output value, so we can write it down as x%=42.38.
5. Now we have two simple equations:
1) 100%=52.16
2) x%=42.38
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%=52.16/42.38
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 42.38 is what percent of 52.16

100%/x%=52.16/42.38
(100/x)*x=(52.16/42.38)*x       - we multiply both sides of the equation by x
100=1.2307692307692*x       - we divide both sides of the equation by (1.2307692307692) to get x
100/1.2307692307692=x
81.25=x
x=81.25

now we have:
42.38 is 81.25% of 52.16