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Finding the Fourth Proportional to 40,447.91, 60,672 and 12,367.85

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Solution

The fourth proportional to 40,447.91, 60,672 and 12,367.85 is: 18,551.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,447.91 : 60,672 = 12,367.85 : x
  2. Step 2: Convert to fraction form
    40,447.91/60,672 = 12,367.85/x
  3. Step 3: Cross multiply
    40,447.91x = 60,672 × 12,367.85
  4. Step 4: Simplify right side
    40,447.91x = 750,382,195.20
  5. Step 5: Solve for x
    x = 750,382,195.20/40,447.91
  6. Step 6: Final answer
    x = 18,551.82

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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.