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Finding the Third Proportional to 20,110 and 40,831

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Solution

The third proportional to 20,110 and 40,831 is: 82,902.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,110 : 40,831 = 40,831 : x
  2. Step 2: Convert to fraction form
    20,110/40,831 = 40,831/x
  3. Step 3: Cross multiply
    20,110x = 40,831 × 40,831
  4. Step 4: Simplify right side
    20,110x = 1,667,170,561
  5. Step 5: Solve for x
    x = 1,667,170,561/20,110
  6. Step 6: Final answer
    x = 82,902.56

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.