Finding the Fourth Proportional to 71,893.07, 107,869.22 and 29,781.62
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Solution
The fourth proportional to 71,893.07, 107,869.22 and 29,781.62 is: 44,684.70
Step by Step Solution
- Step 1: Write the proportion equation
71,893.07 : 107,869.22 = 29,781.62 : x - Step 2: Convert to fraction form
71,893.07/107,869.22 = 29,781.62/x - Step 3: Cross multiply
71,893.07x = 107,869.22 × 29,781.62 - Step 4: Simplify right side
71,893.07x = 3,212,520,554.44 - Step 5: Solve for x
x = 3,212,520,554.44/71,893.07 - Step 6: Final answer
x = 44,684.70
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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.