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Finding the Fourth Proportional to 40,251, 60,379.84 and 12,549

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Solution

The fourth proportional to 40,251, 60,379.84 and 12,549 is: 18,824.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,251 : 60,379.84 = 12,549 : x
  2. Step 2: Convert to fraction form
    40,251/60,379.84 = 12,549/x
  3. Step 3: Cross multiply
    40,251x = 60,379.84 × 12,549
  4. Step 4: Simplify right side
    40,251x = 757,706,612.16
  5. Step 5: Solve for x
    x = 757,706,612.16/40,251
  6. Step 6: Final answer
    x = 18,824.54

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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.