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Finding the Third Proportional to 31,404 and 66,444

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Solution

The third proportional to 31,404 and 66,444 is: 140,580.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,404 : 66,444 = 66,444 : x
  2. Step 2: Convert to fraction form
    31,404/66,444 = 66,444/x
  3. Step 3: Cross multiply
    31,404x = 66,444 × 66,444
  4. Step 4: Simplify right side
    31,404x = 4,414,805,136
  5. Step 5: Solve for x
    x = 4,414,805,136/31,404
  6. Step 6: Final answer
    x = 140,580.98

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.