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Finding the Third Proportional to 51,375 and 75,285

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Solution

The third proportional to 51,375 and 75,285 is: 110,322.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,375 : 75,285 = 75,285 : x
  2. Step 2: Convert to fraction form
    51,375/75,285 = 75,285/x
  3. Step 3: Cross multiply
    51,375x = 75,285 × 75,285
  4. Step 4: Simplify right side
    51,375x = 5,667,831,225
  5. Step 5: Solve for x
    x = 5,667,831,225/51,375
  6. Step 6: Final answer
    x = 110,322.75

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.