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Finding the Third Proportional to 40,860 and 61,831

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Solution

The third proportional to 40,860 and 61,831 is: 93,565.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,860 : 61,831 = 61,831 : x
  2. Step 2: Convert to fraction form
    40,860/61,831 = 61,831/x
  3. Step 3: Cross multiply
    40,860x = 61,831 × 61,831
  4. Step 4: Simplify right side
    40,860x = 3,823,072,561
  5. Step 5: Solve for x
    x = 3,823,072,561/40,860
  6. Step 6: Final answer
    x = 93,565.16

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.