Finding the Fourth Proportional to 91,469.05, 137,213.66 and 29,125.21
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Solution
The fourth proportional to 91,469.05, 137,213.66 and 29,125.21 is: 43,691.02
Step by Step Solution
- Step 1: Write the proportion equation
91,469.05 : 137,213.66 = 29,125.21 : x - Step 2: Convert to fraction form
91,469.05/137,213.66 = 29,125.21/x - Step 3: Cross multiply
91,469.05x = 137,213.66 × 29,125.21 - Step 4: Simplify right side
91,469.05x = 3,996,376,516.74 - Step 5: Solve for x
x = 3,996,376,516.74/91,469.05 - Step 6: Final answer
x = 43,691.02
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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.