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Finding the Third Proportional to 51,068 and 79,275

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Solution

The third proportional to 51,068 and 79,275 is: 123,061.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,068 : 79,275 = 79,275 : x
  2. Step 2: Convert to fraction form
    51,068/79,275 = 79,275/x
  3. Step 3: Cross multiply
    51,068x = 79,275 × 79,275
  4. Step 4: Simplify right side
    51,068x = 6,284,525,625
  5. Step 5: Solve for x
    x = 6,284,525,625/51,068
  6. Step 6: Final answer
    x = 123,061.91

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.