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Finding the Third Proportional to 54,459 and 83,291

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Solution

The third proportional to 54,459 and 83,291 is: 127,387.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,459 : 83,291 = 83,291 : x
  2. Step 2: Convert to fraction form
    54,459/83,291 = 83,291/x
  3. Step 3: Cross multiply
    54,459x = 83,291 × 83,291
  4. Step 4: Simplify right side
    54,459x = 6,937,390,681
  5. Step 5: Solve for x
    x = 6,937,390,681/54,459
  6. Step 6: Final answer
    x = 127,387.40

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.