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Finding the Fourth Proportional to 57.66, 86.03 and 52.26

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Solution

The fourth proportional to 57.66, 86.03 and 52.26 is: 77.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57.66 : 86.03 = 52.26 : x
  2. Step 2: Convert to fraction form
    57.66/86.03 = 52.26/x
  3. Step 3: Cross multiply
    57.66x = 86.03 × 52.26
  4. Step 4: Simplify right side
    57.66x = 4,495.93
  5. Step 5: Solve for x
    x = 4,495.93/57.66
  6. Step 6: Final answer
    x = 77.97

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.