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Finding the Third Proportional to 61.13 and 93.75

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Solution

The third proportional to 61.13 and 93.75 is: 143.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61.13 : 93.75 = 93.75 : x
  2. Step 2: Convert to fraction form
    61.13/93.75 = 93.75/x
  3. Step 3: Cross multiply
    61.13x = 93.75 × 93.75
  4. Step 4: Simplify right side
    61.13x = 8,789.06
  5. Step 5: Solve for x
    x = 8,789.06/61.13
  6. Step 6: Final answer
    x = 143.79

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.