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Finding the Third Proportional to 43,042 and 87,812

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Solution

The third proportional to 43,042 and 87,812 is: 179,149.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,042 : 87,812 = 87,812 : x
  2. Step 2: Convert to fraction form
    43,042/87,812 = 87,812/x
  3. Step 3: Cross multiply
    43,042x = 87,812 × 87,812
  4. Step 4: Simplify right side
    43,042x = 7,710,947,344
  5. Step 5: Solve for x
    x = 7,710,947,344/43,042
  6. Step 6: Final answer
    x = 179,149.37

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.