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Finding the Fourth Proportional to 63.94, 88.17 and 54.76

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Solution

The fourth proportional to 63.94, 88.17 and 54.76 is: 75.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    63.94 : 88.17 = 54.76 : x
  2. Step 2: Convert to fraction form
    63.94/88.17 = 54.76/x
  3. Step 3: Cross multiply
    63.94x = 88.17 × 54.76
  4. Step 4: Simplify right side
    63.94x = 4,828.19
  5. Step 5: Solve for x
    x = 4,828.19/63.94
  6. Step 6: Final answer
    x = 75.51

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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.