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Finding the Third Proportional to 54,880 and 87,273

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Solution

The third proportional to 54,880 and 87,273 is: 138,786.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,880 : 87,273 = 87,273 : x
  2. Step 2: Convert to fraction form
    54,880/87,273 = 87,273/x
  3. Step 3: Cross multiply
    54,880x = 87,273 × 87,273
  4. Step 4: Simplify right side
    54,880x = 7,616,576,529
  5. Step 5: Solve for x
    x = 7,616,576,529/54,880
  6. Step 6: Final answer
    x = 138,786.02

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.