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Finding the Third Proportional to 51,862 and 79,175

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Solution

The third proportional to 51,862 and 79,175 is: 120,872.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,862 : 79,175 = 79,175 : x
  2. Step 2: Convert to fraction form
    51,862/79,175 = 79,175/x
  3. Step 3: Cross multiply
    51,862x = 79,175 × 79,175
  4. Step 4: Simplify right side
    51,862x = 6,268,680,625
  5. Step 5: Solve for x
    x = 6,268,680,625/51,862
  6. Step 6: Final answer
    x = 120,872.33

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.