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Finding the Fourth Proportional to 63.42, 87.50 and 37.54

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Solution

The fourth proportional to 63.42, 87.50 and 37.54 is: 51.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    63.42 : 87.50 = 37.54 : x
  2. Step 2: Convert to fraction form
    63.42/87.50 = 37.54/x
  3. Step 3: Cross multiply
    63.42x = 87.50 × 37.54
  4. Step 4: Simplify right side
    63.42x = 3,284.75
  5. Step 5: Solve for x
    x = 3,284.75/63.42
  6. Step 6: Final answer
    x = 51.79

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.