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Finding the Fourth Proportional to 72,350.46, 108,508.68 and 19,747.44

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Solution

The fourth proportional to 72,350.46, 108,508.68 and 19,747.44 is: 29,616.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,350.46 : 108,508.68 = 19,747.44 : x
  2. Step 2: Convert to fraction form
    72,350.46/108,508.68 = 19,747.44/x
  3. Step 3: Cross multiply
    72,350.46x = 108,508.68 × 19,747.44
  4. Step 4: Simplify right side
    72,350.46x = 2,142,768,647.78
  5. Step 5: Solve for x
    x = 2,142,768,647.78/72,350.46
  6. Step 6: Final answer
    x = 29,616.52

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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.