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Finding the Fourth Proportional to 65.23, 97.36 and 57.52

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Solution

The fourth proportional to 65.23, 97.36 and 57.52 is: 85.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    65.23 : 97.36 = 57.52 : x
  2. Step 2: Convert to fraction form
    65.23/97.36 = 57.52/x
  3. Step 3: Cross multiply
    65.23x = 97.36 × 57.52
  4. Step 4: Simplify right side
    65.23x = 5,600.15
  5. Step 5: Solve for x
    x = 5,600.15/65.23
  6. Step 6: Final answer
    x = 85.85

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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.