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Finding the Third Proportional to 48.05 and 68.88

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Solution

The third proportional to 48.05 and 68.88 is: 98.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    48.05 : 68.88 = 68.88 : x
  2. Step 2: Convert to fraction form
    48.05/68.88 = 68.88/x
  3. Step 3: Cross multiply
    48.05x = 68.88 × 68.88
  4. Step 4: Simplify right side
    48.05x = 4,744.14
  5. Step 5: Solve for x
    x = 4,744.14/48.05
  6. Step 6: Final answer
    x = 98.72

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.