Home / 87,934.56-131,920.29-28,765.59

Finding the Fourth Proportional to 87,934.56, 131,920.29 and 28,765.59

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Solution

The fourth proportional to 87,934.56, 131,920.29 and 28,765.59 is: 43,154.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,934.56 : 131,920.29 = 28,765.59 : x
  2. Step 2: Convert to fraction form
    87,934.56/131,920.29 = 28,765.59/x
  3. Step 3: Cross multiply
    87,934.56x = 131,920.29 × 28,765.59
  4. Step 4: Simplify right side
    87,934.56x = 3,794,764,974.82
  5. Step 5: Solve for x
    x = 3,794,764,974.82/87,934.56
  6. Step 6: Final answer
    x = 43,154.42

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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.