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Finding the Fourth Proportional to 67.77, 101.51 and 60.95

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Solution

The fourth proportional to 67.77, 101.51 and 60.95 is: 91.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.77 : 101.51 = 60.95 : x
  2. Step 2: Convert to fraction form
    67.77/101.51 = 60.95/x
  3. Step 3: Cross multiply
    67.77x = 101.51 × 60.95
  4. Step 4: Simplify right side
    67.77x = 6,186.22
  5. Step 5: Solve for x
    x = 6,186.22/67.77
  6. Step 6: Final answer
    x = 91.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.