Home / 68,898.28-103,353.92-26,781.57

Finding the Fourth Proportional to 68,898.28, 103,353.92 and 26,781.57

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Solution

The fourth proportional to 68,898.28, 103,353.92 and 26,781.57 is: 40,174.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,898.28 : 103,353.92 = 26,781.57 : x
  2. Step 2: Convert to fraction form
    68,898.28/103,353.92 = 26,781.57/x
  3. Step 3: Cross multiply
    68,898.28x = 103,353.92 × 26,781.57
  4. Step 4: Simplify right side
    68,898.28x = 2,767,979,592.58
  5. Step 5: Solve for x
    x = 2,767,979,592.58/68,898.28
  6. Step 6: Final answer
    x = 40,174.88

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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.