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Finding the Fourth Proportional to 40,534, 60,800.68 and 12,454

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Solution

The fourth proportional to 40,534, 60,800.68 and 12,454 is: 18,680.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,534 : 60,800.68 = 12,454 : x
  2. Step 2: Convert to fraction form
    40,534/60,800.68 = 12,454/x
  3. Step 3: Cross multiply
    40,534x = 60,800.68 × 12,454
  4. Step 4: Simplify right side
    40,534x = 757,211,668.72
  5. Step 5: Solve for x
    x = 757,211,668.72/40,534
  6. Step 6: Final answer
    x = 18,680.90

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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.