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Finding the Fourth Proportional to 68.06, 101.48 and 65.49

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Solution

The fourth proportional to 68.06, 101.48 and 65.49 is: 97.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68.06 : 101.48 = 65.49 : x
  2. Step 2: Convert to fraction form
    68.06/101.48 = 65.49/x
  3. Step 3: Cross multiply
    68.06x = 101.48 × 65.49
  4. Step 4: Simplify right side
    68.06x = 6,645.60
  5. Step 5: Solve for x
    x = 6,645.60/68.06
  6. Step 6: Final answer
    x = 97.65

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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.