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Finding the Third Proportional to 40,820 and 62,439

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Solution

The third proportional to 40,820 and 62,439 is: 95,507.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,820 : 62,439 = 62,439 : x
  2. Step 2: Convert to fraction form
    40,820/62,439 = 62,439/x
  3. Step 3: Cross multiply
    40,820x = 62,439 × 62,439
  4. Step 4: Simplify right side
    40,820x = 3,898,628,721
  5. Step 5: Solve for x
    x = 3,898,628,721/40,820
  6. Step 6: Final answer
    x = 95,507.81

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.