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Finding the Third Proportional to 40,772 and 83,272

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Solution

The third proportional to 40,772 and 83,272 is: 170,073.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,772 : 83,272 = 83,272 : x
  2. Step 2: Convert to fraction form
    40,772/83,272 = 83,272/x
  3. Step 3: Cross multiply
    40,772x = 83,272 × 83,272
  4. Step 4: Simplify right side
    40,772x = 6,934,225,984
  5. Step 5: Solve for x
    x = 6,934,225,984/40,772
  6. Step 6: Final answer
    x = 170,073.24

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.