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Finding the Third Proportional to 38,400 and 55,936

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Solution

The third proportional to 38,400 and 55,936 is: 81,480.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,400 : 55,936 = 55,936 : x
  2. Step 2: Convert to fraction form
    38,400/55,936 = 55,936/x
  3. Step 3: Cross multiply
    38,400x = 55,936 × 55,936
  4. Step 4: Simplify right side
    38,400x = 3,128,836,096
  5. Step 5: Solve for x
    x = 3,128,836,096/38,400
  6. Step 6: Final answer
    x = 81,480.11

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.