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Finding the Third Proportional to 39,650 and 87,074

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Solution

The third proportional to 39,650 and 87,074 is: 191,220.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,650 : 87,074 = 87,074 : x
  2. Step 2: Convert to fraction form
    39,650/87,074 = 87,074/x
  3. Step 3: Cross multiply
    39,650x = 87,074 × 87,074
  4. Step 4: Simplify right side
    39,650x = 7,581,881,476
  5. Step 5: Solve for x
    x = 7,581,881,476/39,650
  6. Step 6: Final answer
    x = 191,220.21

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.