Home / 87,503.38-120,748.40-49,260.96

Finding the Fourth Proportional to 87,503.38, 120,748.40 and 49,260.96

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Solution

The fourth proportional to 87,503.38, 120,748.40 and 49,260.96 is: 67,976.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,503.38 : 120,748.40 = 49,260.96 : x
  2. Step 2: Convert to fraction form
    87,503.38/120,748.40 = 49,260.96/x
  3. Step 3: Cross multiply
    87,503.38x = 120,748.40 × 49,260.96
  4. Step 4: Simplify right side
    87,503.38x = 5,948,182,102.46
  5. Step 5: Solve for x
    x = 5,948,182,102.46/87,503.38
  6. Step 6: Final answer
    x = 67,976.60

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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.