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Finding the Third Proportional to 51,436 and 77,802

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Solution

The third proportional to 51,436 and 77,802 is: 117,683.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,436 : 77,802 = 77,802 : x
  2. Step 2: Convert to fraction form
    51,436/77,802 = 77,802/x
  3. Step 3: Cross multiply
    51,436x = 77,802 × 77,802
  4. Step 4: Simplify right side
    51,436x = 6,053,151,204
  5. Step 5: Solve for x
    x = 6,053,151,204/51,436
  6. Step 6: Final answer
    x = 117,683.16

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.