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Finding the Fourth Proportional to 66.95, 92.82 and 63.49

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Solution

The fourth proportional to 66.95, 92.82 and 63.49 is: 88.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66.95 : 92.82 = 63.49 : x
  2. Step 2: Convert to fraction form
    66.95/92.82 = 63.49/x
  3. Step 3: Cross multiply
    66.95x = 92.82 × 63.49
  4. Step 4: Simplify right side
    66.95x = 5,893.50
  5. Step 5: Solve for x
    x = 5,893.50/66.95
  6. Step 6: Final answer
    x = 88.03

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These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.