Finding the Fourth Proportional to 71,778.18, 107,587.97 and 29,635.03
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Solution
The fourth proportional to 71,778.18, 107,587.97 and 29,635.03 is: 44,419.80
Step by Step Solution
- Step 1: Write the proportion equation
71,778.18 : 107,587.97 = 29,635.03 : x - Step 2: Convert to fraction form
71,778.18/107,587.97 = 29,635.03/x - Step 3: Cross multiply
71,778.18x = 107,587.97 × 29,635.03 - Step 4: Simplify right side
71,778.18x = 3,188,372,718.59 - Step 5: Solve for x
x = 3,188,372,718.59/71,778.18 - Step 6: Final answer
x = 44,419.80
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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.