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Finding the Third Proportional to 54,576 and 82,680

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Solution

The third proportional to 54,576 and 82,680 is: 125,256.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,576 : 82,680 = 82,680 : x
  2. Step 2: Convert to fraction form
    54,576/82,680 = 82,680/x
  3. Step 3: Cross multiply
    54,576x = 82,680 × 82,680
  4. Step 4: Simplify right side
    54,576x = 6,835,982,400
  5. Step 5: Solve for x
    x = 6,835,982,400/54,576
  6. Step 6: Final answer
    x = 125,256.20

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.