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Finding the Third Proportional to 79,872 and 87,552

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Solution

The third proportional to 79,872 and 87,552 is: 95,970.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,872 : 87,552 = 87,552 : x
  2. Step 2: Convert to fraction form
    79,872/87,552 = 87,552/x
  3. Step 3: Cross multiply
    79,872x = 87,552 × 87,552
  4. Step 4: Simplify right side
    79,872x = 7,665,352,704
  5. Step 5: Solve for x
    x = 7,665,352,704/79,872
  6. Step 6: Final answer
    x = 95,970.46

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.