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Finding the Fourth Proportional to 95.51, 131.79 and 58.67

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Solution

The fourth proportional to 95.51, 131.79 and 58.67 is: 80.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.51 : 131.79 = 58.67 : x
  2. Step 2: Convert to fraction form
    95.51/131.79 = 58.67/x
  3. Step 3: Cross multiply
    95.51x = 131.79 × 58.67
  4. Step 4: Simplify right side
    95.51x = 7,732.12
  5. Step 5: Solve for x
    x = 7,732.12/95.51
  6. Step 6: Final answer
    x = 80.96

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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.