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Finding the Fourth Proportional to 68.17, 94.02 and 43.64

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Solution

The fourth proportional to 68.17, 94.02 and 43.64 is: 60.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    68.17 : 94.02 = 43.64 : x
  2. Step 2: Convert to fraction form
    68.17/94.02 = 43.64/x
  3. Step 3: Cross multiply
    68.17x = 94.02 × 43.64
  4. Step 4: Simplify right side
    68.17x = 4,103.03
  5. Step 5: Solve for x
    x = 4,103.03/68.17
  6. Step 6: Final answer
    x = 60.19

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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.