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Finding the Third Proportional to 33,780 and 52,080

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Solution

The third proportional to 33,780 and 52,080 is: 80,293.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,780 : 52,080 = 52,080 : x
  2. Step 2: Convert to fraction form
    33,780/52,080 = 52,080/x
  3. Step 3: Cross multiply
    33,780x = 52,080 × 52,080
  4. Step 4: Simplify right side
    33,780x = 2,712,326,400
  5. Step 5: Solve for x
    x = 2,712,326,400/33,780
  6. Step 6: Final answer
    x = 80,293.85

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.