Finding the Fourth Proportional to 73,165.08, 100,968.12 and 39,631.08
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Solution
The fourth proportional to 73,165.08, 100,968.12 and 39,631.08 is: 54,691.06
Step by Step Solution
- Step 1: Write the proportion equation
73,165.08 : 100,968.12 = 39,631.08 : x - Step 2: Convert to fraction form
73,165.08/100,968.12 = 39,631.08/x - Step 3: Cross multiply
73,165.08x = 100,968.12 × 39,631.08 - Step 4: Simplify right side
73,165.08x = 4,001,475,641.17 - Step 5: Solve for x
x = 4,001,475,641.17/73,165.08 - Step 6: Final answer
x = 54,691.06
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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.