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Finding the Third Proportional to 55,394 and 85,395

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Solution

The third proportional to 55,394 and 85,395 is: 131,644.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,394 : 85,395 = 85,395 : x
  2. Step 2: Convert to fraction form
    55,394/85,395 = 85,395/x
  3. Step 3: Cross multiply
    55,394x = 85,395 × 85,395
  4. Step 4: Simplify right side
    55,394x = 7,292,306,025
  5. Step 5: Solve for x
    x = 7,292,306,025/55,394
  6. Step 6: Final answer
    x = 131,644.33

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.