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Finding the Third Proportional to 28,727 and 42,917.75

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Solution

The third proportional to 28,727 and 42,917.75 is: 64,118.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,727 : 42,917.75 = 42,917.75 : x
  2. Step 2: Convert to fraction form
    28,727/42,917.75 = 42,917.75/x
  3. Step 3: Cross multiply
    28,727x = 42,917.75 × 42,917.75
  4. Step 4: Simplify right side
    28,727x = 1,841,933,265.06
  5. Step 5: Solve for x
    x = 1,841,933,265.06/28,727
  6. Step 6: Final answer
    x = 64,118.54

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.