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Finding the Fourth Proportional to 48,006.60, 72,000.90 and 38,700.96

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Solution

The fourth proportional to 48,006.60, 72,000.90 and 38,700.96 is: 58,044.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,006.60 : 72,000.90 = 38,700.96 : x
  2. Step 2: Convert to fraction form
    48,006.60/72,000.90 = 38,700.96/x
  3. Step 3: Cross multiply
    48,006.60x = 72,000.90 × 38,700.96
  4. Step 4: Simplify right side
    48,006.60x = 2,786,503,950.86
  5. Step 5: Solve for x
    x = 2,786,503,950.86/48,006.60
  6. Step 6: Final answer
    x = 58,044.18

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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.