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Finding the Third Proportional to 28,015.50 and 60,279

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Solution

The third proportional to 28,015.50 and 60,279 is: 129,698.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,015.50 : 60,279 = 60,279 : x
  2. Step 2: Convert to fraction form
    28,015.50/60,279 = 60,279/x
  3. Step 3: Cross multiply
    28,015.50x = 60,279 × 60,279
  4. Step 4: Simplify right side
    28,015.50x = 3,633,557,841
  5. Step 5: Solve for x
    x = 3,633,557,841/28,015.50
  6. Step 6: Final answer
    x = 129,698.13

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.