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Finding the Third Proportional to 54,690 and 82,035

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Solution

The third proportional to 54,690 and 82,035 is: 123,052.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,690 : 82,035 = 82,035 : x
  2. Step 2: Convert to fraction form
    54,690/82,035 = 82,035/x
  3. Step 3: Cross multiply
    54,690x = 82,035 × 82,035
  4. Step 4: Simplify right side
    54,690x = 6,729,741,225
  5. Step 5: Solve for x
    x = 6,729,741,225/54,690
  6. Step 6: Final answer
    x = 123,052.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.