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Finding the Third Proportional to 37,611 and 81,100

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Solution

The third proportional to 37,611 and 81,100 is: 174,874.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,611 : 81,100 = 81,100 : x
  2. Step 2: Convert to fraction form
    37,611/81,100 = 81,100/x
  3. Step 3: Cross multiply
    37,611x = 81,100 × 81,100
  4. Step 4: Simplify right side
    37,611x = 6,577,210,000
  5. Step 5: Solve for x
    x = 6,577,210,000/37,611
  6. Step 6: Final answer
    x = 174,874.64

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.