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Finding the Fourth Proportional to 95.25, 131.45 and 56.46

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Solution

The fourth proportional to 95.25, 131.45 and 56.46 is: 77.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.25 : 131.45 = 56.46 : x
  2. Step 2: Convert to fraction form
    95.25/131.45 = 56.46/x
  3. Step 3: Cross multiply
    95.25x = 131.45 × 56.46
  4. Step 4: Simplify right side
    95.25x = 7,421.38
  5. Step 5: Solve for x
    x = 7,421.38/95.25
  6. Step 6: Final answer
    x = 77.91

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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.