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Finding the Fourth Proportional to 45,061, 67,591.62 and 12,229

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Solution

The fourth proportional to 45,061, 67,591.62 and 12,229 is: 18,343.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,061 : 67,591.62 = 12,229 : x
  2. Step 2: Convert to fraction form
    45,061/67,591.62 = 12,229/x
  3. Step 3: Cross multiply
    45,061x = 67,591.62 × 12,229
  4. Step 4: Simplify right side
    45,061x = 826,577,920.98
  5. Step 5: Solve for x
    x = 826,577,920.98/45,061
  6. Step 6: Final answer
    x = 18,343.53

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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.