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Finding the Third Proportional to 30,542 and 66,068

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Solution

The third proportional to 30,542 and 66,068 is: 142,917.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,542 : 66,068 = 66,068 : x
  2. Step 2: Convert to fraction form
    30,542/66,068 = 66,068/x
  3. Step 3: Cross multiply
    30,542x = 66,068 × 66,068
  4. Step 4: Simplify right side
    30,542x = 4,364,980,624
  5. Step 5: Solve for x
    x = 4,364,980,624/30,542
  6. Step 6: Final answer
    x = 142,917.31

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.