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Finding the Third Proportional to 54,480 and 81,717

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Solution

The third proportional to 54,480 and 81,717 is: 122,571.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,480 : 81,717 = 81,717 : x
  2. Step 2: Convert to fraction form
    54,480/81,717 = 81,717/x
  3. Step 3: Cross multiply
    54,480x = 81,717 × 81,717
  4. Step 4: Simplify right side
    54,480x = 6,677,668,089
  5. Step 5: Solve for x
    x = 6,677,668,089/54,480
  6. Step 6: Final answer
    x = 122,571.00

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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.