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Finding the Third Proportional to 31,752 and 71,592

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Solution

The third proportional to 31,752 and 71,592 is: 161,420.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,752 : 71,592 = 71,592 : x
  2. Step 2: Convert to fraction form
    31,752/71,592 = 71,592/x
  3. Step 3: Cross multiply
    31,752x = 71,592 × 71,592
  4. Step 4: Simplify right side
    31,752x = 5,125,414,464
  5. Step 5: Solve for x
    x = 5,125,414,464/31,752
  6. Step 6: Final answer
    x = 161,420.21

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Why These Related Problems?

These problems maintain the same ratio (2.25) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.