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Finding the Fourth Proportional to 48,650.38, 72,978.46 and 13,590.04

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Solution

The fourth proportional to 48,650.38, 72,978.46 and 13,590.04 is: 20,385.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,650.38 : 72,978.46 = 13,590.04 : x
  2. Step 2: Convert to fraction form
    48,650.38/72,978.46 = 13,590.04/x
  3. Step 3: Cross multiply
    48,650.38x = 72,978.46 × 13,590.04
  4. Step 4: Simplify right side
    48,650.38x = 991,780,190.54
  5. Step 5: Solve for x
    x = 991,780,190.54/48,650.38
  6. Step 6: Final answer
    x = 20,385.87

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.