Home / 87,442.38-120,655.44-49,196.61

Finding the Fourth Proportional to 87,442.38, 120,655.44 and 49,196.61

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Solution

The fourth proportional to 87,442.38, 120,655.44 and 49,196.61 is: 67,882.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,442.38 : 120,655.44 = 49,196.61 : x
  2. Step 2: Convert to fraction form
    87,442.38/120,655.44 = 49,196.61/x
  3. Step 3: Cross multiply
    87,442.38x = 120,655.44 × 49,196.61
  4. Step 4: Simplify right side
    87,442.38x = 5,935,838,626.06
  5. Step 5: Solve for x
    x = 5,935,838,626.06/87,442.38
  6. Step 6: Final answer
    x = 67,882.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.