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Finding the Third Proportional to 54,977 and 82,321

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Solution

The third proportional to 54,977 and 82,321 is: 123,265.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,977 : 82,321 = 82,321 : x
  2. Step 2: Convert to fraction form
    54,977/82,321 = 82,321/x
  3. Step 3: Cross multiply
    54,977x = 82,321 × 82,321
  4. Step 4: Simplify right side
    54,977x = 6,776,747,041
  5. Step 5: Solve for x
    x = 6,776,747,041/54,977
  6. Step 6: Final answer
    x = 123,265.13

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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.