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Finding the Third Proportional to 43,812 and 61,992

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Solution

The third proportional to 43,812 and 61,992 is: 87,715.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,812 : 61,992 = 61,992 : x
  2. Step 2: Convert to fraction form
    43,812/61,992 = 61,992/x
  3. Step 3: Cross multiply
    43,812x = 61,992 × 61,992
  4. Step 4: Simplify right side
    43,812x = 3,843,008,064
  5. Step 5: Solve for x
    x = 3,843,008,064/43,812
  6. Step 6: Final answer
    x = 87,715.88

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.