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Finding the Fourth Proportional to 45,010.38, 67,479.02 and 18,734.79

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Solution

The fourth proportional to 45,010.38, 67,479.02 and 18,734.79 is: 28,086.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,010.38 : 67,479.02 = 18,734.79 : x
  2. Step 2: Convert to fraction form
    45,010.38/67,479.02 = 18,734.79/x
  3. Step 3: Cross multiply
    45,010.38x = 67,479.02 × 18,734.79
  4. Step 4: Simplify right side
    45,010.38x = 1,264,205,175.43
  5. Step 5: Solve for x
    x = 1,264,205,175.43/45,010.38
  6. Step 6: Final answer
    x = 28,086.97

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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.