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Finding the Fourth Proportional to 45,071, 67,592.12 and 15,481.70

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Solution

The fourth proportional to 45,071, 67,592.12 and 15,481.70 is: 23,217.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,071 : 67,592.12 = 15,481.70 : x
  2. Step 2: Convert to fraction form
    45,071/67,592.12 = 15,481.70/x
  3. Step 3: Cross multiply
    45,071x = 67,592.12 × 15,481.70
  4. Step 4: Simplify right side
    45,071x = 1,046,440,924.20
  5. Step 5: Solve for x
    x = 1,046,440,924.20/45,071
  6. Step 6: Final answer
    x = 23,217.61

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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.