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Finding the Fourth Proportional to 96.77, 133.59 and 67.43

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Solution

The fourth proportional to 96.77, 133.59 and 67.43 is: 93.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.77 : 133.59 = 67.43 : x
  2. Step 2: Convert to fraction form
    96.77/133.59 = 67.43/x
  3. Step 3: Cross multiply
    96.77x = 133.59 × 67.43
  4. Step 4: Simplify right side
    96.77x = 9,007.97
  5. Step 5: Solve for x
    x = 9,007.97/96.77
  6. Step 6: Final answer
    x = 93.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.