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Finding the Third Proportional to 54,388 and 84,044

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Solution

The third proportional to 54,388 and 84,044 is: 129,870.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,388 : 84,044 = 84,044 : x
  2. Step 2: Convert to fraction form
    54,388/84,044 = 84,044/x
  3. Step 3: Cross multiply
    54,388x = 84,044 × 84,044
  4. Step 4: Simplify right side
    54,388x = 7,063,393,936
  5. Step 5: Solve for x
    x = 7,063,393,936/54,388
  6. Step 6: Final answer
    x = 129,870.45

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.