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Finding the Third Proportional to 36,612 and 76,140

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Solution

The third proportional to 36,612 and 76,140 is: 158,344.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,612 : 76,140 = 76,140 : x
  2. Step 2: Convert to fraction form
    36,612/76,140 = 76,140/x
  3. Step 3: Cross multiply
    36,612x = 76,140 × 76,140
  4. Step 4: Simplify right side
    36,612x = 5,797,299,600
  5. Step 5: Solve for x
    x = 5,797,299,600/36,612
  6. Step 6: Final answer
    x = 158,344.25

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.