Finding the Fourth Proportional to 71,439.29, 107,151.39 and 29,323.80
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Solution
The fourth proportional to 71,439.29, 107,151.39 and 29,323.80 is: 43,982.61
Step by Step Solution
- Step 1: Write the proportion equation
71,439.29 : 107,151.39 = 29,323.80 : x - Step 2: Convert to fraction form
71,439.29/107,151.39 = 29,323.80/x - Step 3: Cross multiply
71,439.29x = 107,151.39 × 29,323.80 - Step 4: Simplify right side
71,439.29x = 3,142,085,930.08 - Step 5: Solve for x
x = 3,142,085,930.08/71,439.29 - Step 6: Final answer
x = 43,982.61
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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.