Finding the Fourth Proportional to 71,645.04, 107,264.79 and 54,758.70
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Solution
The fourth proportional to 71,645.04, 107,264.79 and 54,758.70 is: 81,983.07
Step by Step Solution
- Step 1: Write the proportion equation
71,645.04 : 107,264.79 = 54,758.70 : x - Step 2: Convert to fraction form
71,645.04/107,264.79 = 54,758.70/x - Step 3: Cross multiply
71,645.04x = 107,264.79 × 54,758.70 - Step 4: Simplify right side
71,645.04x = 5,873,680,456.17 - Step 5: Solve for x
x = 5,873,680,456.17/71,645.04 - Step 6: Final answer
x = 81,983.07
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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.