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Finding the Third Proportional to 51,658.50 and 79,824

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Solution

The third proportional to 51,658.50 and 79,824 is: 123,346.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,658.50 : 79,824 = 79,824 : x
  2. Step 2: Convert to fraction form
    51,658.50/79,824 = 79,824/x
  3. Step 3: Cross multiply
    51,658.50x = 79,824 × 79,824
  4. Step 4: Simplify right side
    51,658.50x = 6,371,870,976
  5. Step 5: Solve for x
    x = 6,371,870,976/51,658.50
  6. Step 6: Final answer
    x = 123,346.03

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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.