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Finding the Fourth Proportional to 69,129.60, 95,373.88 and 45,269.88

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Solution

The fourth proportional to 69,129.60, 95,373.88 and 45,269.88 is: 62,456.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,129.60 : 95,373.88 = 45,269.88 : x
  2. Step 2: Convert to fraction form
    69,129.60/95,373.88 = 45,269.88/x
  3. Step 3: Cross multiply
    69,129.60x = 95,373.88 × 45,269.88
  4. Step 4: Simplify right side
    69,129.60x = 4,317,564,102.73
  5. Step 5: Solve for x
    x = 4,317,564,102.73/69,129.60
  6. Step 6: Final answer
    x = 62,456.08

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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.