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Finding the Fourth Proportional to 94.88, 131.03 and 58.12

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Solution

The fourth proportional to 94.88, 131.03 and 58.12 is: 80.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.88 : 131.03 = 58.12 : x
  2. Step 2: Convert to fraction form
    94.88/131.03 = 58.12/x
  3. Step 3: Cross multiply
    94.88x = 131.03 × 58.12
  4. Step 4: Simplify right side
    94.88x = 7,615.55
  5. Step 5: Solve for x
    x = 7,615.55/94.88
  6. Step 6: Final answer
    x = 80.27

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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.