90 is what percent of 5.22 - 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 5.22 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 5.22, so we can write it down as 100%=5.22.
4. We know, that x% equals 90 of the output value, so we can write it down as x%=90.
5. Now we have two simple equations:
1) 100%=5.22
2) x%=90
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%=5.22/90
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 90 is what percent of 5.22

100%/x%=5.22/90
(100/x)*x=(5.22/90)*x       - we multiply both sides of the equation by x
100=0.058*x       - we divide both sides of the equation by (0.058) to get x
100/0.058=x
1724.1379310345=x
x=1724.1379310345

now we have:
90 is 1724.1379310345% of 5.22