Finding the Fourth Proportional to 71,503.13, 107,282.93 and 27,141.65
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Solution
The fourth proportional to 71,503.13, 107,282.93 and 27,141.65 is: 40,723.20
Step by Step Solution
- Step 1: Write the proportion equation
71,503.13 : 107,282.93 = 27,141.65 : x - Step 2: Convert to fraction form
71,503.13/107,282.93 = 27,141.65/x - Step 3: Cross multiply
71,503.13x = 107,282.93 × 27,141.65 - Step 4: Simplify right side
71,503.13x = 2,911,836,073.10 - Step 5: Solve for x
x = 2,911,836,073.10/71,503.13 - Step 6: Final answer
x = 40,723.20
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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.