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Finding the Fourth Proportional to 94.10, 141.07 and 57.95

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Solution

The fourth proportional to 94.10, 141.07 and 57.95 is: 86.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.10 : 141.07 = 57.95 : x
  2. Step 2: Convert to fraction form
    94.10/141.07 = 57.95/x
  3. Step 3: Cross multiply
    94.10x = 141.07 × 57.95
  4. Step 4: Simplify right side
    94.10x = 8,175.01
  5. Step 5: Solve for x
    x = 8,175.01/94.10
  6. Step 6: Final answer
    x = 86.88

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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.