Finding the Fourth Proportional to 71,908.08, 107,871.84 and 67,534.08
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Solution
The fourth proportional to 71,908.08, 107,871.84 and 67,534.08 is: 101,310.25
Step by Step Solution
- Step 1: Write the proportion equation
71,908.08 : 107,871.84 = 67,534.08 : x - Step 2: Convert to fraction form
71,908.08/107,871.84 = 67,534.08/x - Step 3: Cross multiply
71,908.08x = 107,871.84 × 67,534.08 - Step 4: Simplify right side
71,908.08x = 7,285,025,472.31 - Step 5: Solve for x
x = 7,285,025,472.31/71,908.08 - Step 6: Final answer
x = 101,310.25
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.