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Finding the Third Proportional to 37,620 and 80,240

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Solution

The third proportional to 37,620 and 80,240 is: 171,144.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,620 : 80,240 = 80,240 : x
  2. Step 2: Convert to fraction form
    37,620/80,240 = 80,240/x
  3. Step 3: Cross multiply
    37,620x = 80,240 × 80,240
  4. Step 4: Simplify right side
    37,620x = 6,438,457,600
  5. Step 5: Solve for x
    x = 6,438,457,600/37,620
  6. Step 6: Final answer
    x = 171,144.54

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.