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Finding the Fourth Proportional to 87,882.69, 131,768.16 and 74,560.29

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Solution

The fourth proportional to 87,882.69, 131,768.16 and 74,560.29 is: 111,793.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,882.69 : 131,768.16 = 74,560.29 : x
  2. Step 2: Convert to fraction form
    87,882.69/131,768.16 = 74,560.29/x
  3. Step 3: Cross multiply
    87,882.69x = 131,768.16 × 74,560.29
  4. Step 4: Simplify right side
    87,882.69x = 9,824,672,222.37
  5. Step 5: Solve for x
    x = 9,824,672,222.37/87,882.69
  6. Step 6: Final answer
    x = 111,793.03

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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.