87 is what percent of 1628 - 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 1628 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 1628, so we can write it down as 100%=1628.
4. We know, that x% equals 87 of the output value, so we can write it down as x%=87.
5. Now we have two simple equations:
1) 100%=1628
2) x%=87
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%=1628/87
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 87 is what percent of 1628

100%/x%=1628/87
(100/x)*x=(1628/87)*x       - we multiply both sides of the equation by x
100=18.712643678161*x       - we divide both sides of the equation by (18.712643678161) to get x
100/18.712643678161=x
5.3439803439803=x
x=5.3439803439803

now we have:
87 is 5.3439803439803% of 1628