Home / 87,469.58-131,172.17-31,294.46

Finding the Fourth Proportional to 87,469.58, 131,172.17 and 31,294.46

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Solution

The fourth proportional to 87,469.58, 131,172.17 and 31,294.46 is: 46,930.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,469.58 : 131,172.17 = 31,294.46 : x
  2. Step 2: Convert to fraction form
    87,469.58/131,172.17 = 31,294.46/x
  3. Step 3: Cross multiply
    87,469.58x = 131,172.17 × 31,294.46
  4. Step 4: Simplify right side
    87,469.58x = 4,104,961,414.85
  5. Step 5: Solve for x
    x = 4,104,961,414.85/87,469.58
  6. Step 6: Final answer
    x = 46,930.16

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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.