Finding the Fourth Proportional to 97,867.62, 135,055.08 and 57,572.55
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Solution
The fourth proportional to 97,867.62, 135,055.08 and 57,572.55 is: 79,448.80
Step by Step Solution
- Step 1: Write the proportion equation
97,867.62 : 135,055.08 = 57,572.55 : x - Step 2: Convert to fraction form
97,867.62/135,055.08 = 57,572.55/x - Step 3: Cross multiply
97,867.62x = 135,055.08 × 57,572.55 - Step 4: Simplify right side
97,867.62x = 7,775,465,346.05 - Step 5: Solve for x
x = 7,775,465,346.05/97,867.62 - Step 6: Final answer
x = 79,448.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.