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Finding the Fourth Proportional to 69,537.60, 104,229.60 and 38,395.20

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Solution

The fourth proportional to 69,537.60, 104,229.60 and 38,395.20 is: 57,550.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,537.60 : 104,229.60 = 38,395.20 : x
  2. Step 2: Convert to fraction form
    69,537.60/104,229.60 = 38,395.20/x
  3. Step 3: Cross multiply
    69,537.60x = 104,229.60 × 38,395.20
  4. Step 4: Simplify right side
    69,537.60x = 4,001,916,337.92
  5. Step 5: Solve for x
    x = 4,001,916,337.92/69,537.60
  6. Step 6: Final answer
    x = 57,550.39

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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.