Home / 87,719.39-131,557.15-34,422.20

Finding the Fourth Proportional to 87,719.39, 131,557.15 and 34,422.20

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Solution

The fourth proportional to 87,719.39, 131,557.15 and 34,422.20 is: 51,624.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,719.39 : 131,557.15 = 34,422.20 : x
  2. Step 2: Convert to fraction form
    87,719.39/131,557.15 = 34,422.20/x
  3. Step 3: Cross multiply
    87,719.39x = 131,557.15 × 34,422.20
  4. Step 4: Simplify right side
    87,719.39x = 4,528,486,528.73
  5. Step 5: Solve for x
    x = 4,528,486,528.73/87,719.39
  6. Step 6: Final answer
    x = 51,624.69

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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.