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Finding the Fourth Proportional to 69,079.26, 95,337.86 and 38,865.90

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Solution

The fourth proportional to 69,079.26, 95,337.86 and 38,865.90 is: 53,639.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,079.26 : 95,337.86 = 38,865.90 : x
  2. Step 2: Convert to fraction form
    69,079.26/95,337.86 = 38,865.90/x
  3. Step 3: Cross multiply
    69,079.26x = 95,337.86 × 38,865.90
  4. Step 4: Simplify right side
    69,079.26x = 3,705,391,538.64
  5. Step 5: Solve for x
    x = 3,705,391,538.64/69,079.26
  6. Step 6: Final answer
    x = 53,639.71

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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.