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Finding the Third Proportional to 37,982 and 81,580

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Solution

The third proportional to 37,982 and 81,580 is: 175,222.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,982 : 81,580 = 81,580 : x
  2. Step 2: Convert to fraction form
    37,982/81,580 = 81,580/x
  3. Step 3: Cross multiply
    37,982x = 81,580 × 81,580
  4. Step 4: Simplify right side
    37,982x = 6,655,296,400
  5. Step 5: Solve for x
    x = 6,655,296,400/37,982
  6. Step 6: Final answer
    x = 175,222.38

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.