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Finding the Third Proportional to 39,142 and 52,434

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Solution

The third proportional to 39,142 and 52,434 is: 70,239.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,142 : 52,434 = 52,434 : x
  2. Step 2: Convert to fraction form
    39,142/52,434 = 52,434/x
  3. Step 3: Cross multiply
    39,142x = 52,434 × 52,434
  4. Step 4: Simplify right side
    39,142x = 2,749,324,356
  5. Step 5: Solve for x
    x = 2,749,324,356/39,142
  6. Step 6: Final answer
    x = 70,239.75

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.