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Finding the Third Proportional to 41,979 and 90,725

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Solution

The third proportional to 41,979 and 90,725 is: 196,074.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,979 : 90,725 = 90,725 : x
  2. Step 2: Convert to fraction form
    41,979/90,725 = 90,725/x
  3. Step 3: Cross multiply
    41,979x = 90,725 × 90,725
  4. Step 4: Simplify right side
    41,979x = 8,231,025,625
  5. Step 5: Solve for x
    x = 8,231,025,625/41,979
  6. Step 6: Final answer
    x = 196,074.84

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.