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Finding the Third Proportional to 42,571 and 62,620

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Solution

The third proportional to 42,571 and 62,620 is: 92,111.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,571 : 62,620 = 62,620 : x
  2. Step 2: Convert to fraction form
    42,571/62,620 = 62,620/x
  3. Step 3: Cross multiply
    42,571x = 62,620 × 62,620
  4. Step 4: Simplify right side
    42,571x = 3,921,264,400
  5. Step 5: Solve for x
    x = 3,921,264,400/42,571
  6. Step 6: Final answer
    x = 92,111.16

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.