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Finding the Third Proportional to 38,772 and 85,401

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Solution

The third proportional to 38,772 and 85,401 is: 188,108.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,772 : 85,401 = 85,401 : x
  2. Step 2: Convert to fraction form
    38,772/85,401 = 85,401/x
  3. Step 3: Cross multiply
    38,772x = 85,401 × 85,401
  4. Step 4: Simplify right side
    38,772x = 7,293,330,801
  5. Step 5: Solve for x
    x = 7,293,330,801/38,772
  6. Step 6: Final answer
    x = 188,108.19

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.