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Finding the Third Proportional to 61,328 and 82,419

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Solution

The third proportional to 61,328 and 82,419 is: 110,763.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,328 : 82,419 = 82,419 : x
  2. Step 2: Convert to fraction form
    61,328/82,419 = 82,419/x
  3. Step 3: Cross multiply
    61,328x = 82,419 × 82,419
  4. Step 4: Simplify right side
    61,328x = 6,792,891,561
  5. Step 5: Solve for x
    x = 6,792,891,561/61,328
  6. Step 6: Final answer
    x = 110,763.30

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.