Finding the Fourth Proportional to 115,614.80, 173,419.76 and 53,285.28
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Solution
The fourth proportional to 115,614.80, 173,419.76 and 53,285.28 is: 79,926.80
Step by Step Solution
- Step 1: Write the proportion equation
115,614.80 : 173,419.76 = 53,285.28 : x - Step 2: Convert to fraction form
115,614.80/173,419.76 = 53,285.28/x - Step 3: Cross multiply
115,614.80x = 173,419.76 × 53,285.28 - Step 4: Simplify right side
115,614.80x = 9,240,720,469.13 - Step 5: Solve for x
x = 9,240,720,469.13/115,614.80 - Step 6: Final answer
x = 79,926.80
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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.