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Finding the Fourth Proportional to 94.89, 131.04 and 62.16

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Solution

The fourth proportional to 94.89, 131.04 and 62.16 is: 85.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.89 : 131.04 = 62.16 : x
  2. Step 2: Convert to fraction form
    94.89/131.04 = 62.16/x
  3. Step 3: Cross multiply
    94.89x = 131.04 × 62.16
  4. Step 4: Simplify right side
    94.89x = 8,145.14
  5. Step 5: Solve for x
    x = 8,145.14/94.89
  6. Step 6: Final answer
    x = 85.84

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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.