Finding the Fourth Proportional to 94,352.18, 130,305.12 and 71,691.62
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Solution
The fourth proportional to 94,352.18, 130,305.12 and 71,691.62 is: 99,009.74
Step by Step Solution
- Step 1: Write the proportion equation
94,352.18 : 130,305.12 = 71,691.62 : x - Step 2: Convert to fraction form
94,352.18/130,305.12 = 71,691.62/x - Step 3: Cross multiply
94,352.18x = 130,305.12 × 71,691.62 - Step 4: Simplify right side
94,352.18x = 9,341,785,147.09 - Step 5: Solve for x
x = 9,341,785,147.09/94,352.18 - Step 6: Final answer
x = 99,009.74
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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.