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Finding the Fourth Proportional to 62.99, 94.07 and 54.89

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Solution

The fourth proportional to 62.99, 94.07 and 54.89 is: 81.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.99 : 94.07 = 54.89 : x
  2. Step 2: Convert to fraction form
    62.99/94.07 = 54.89/x
  3. Step 3: Cross multiply
    62.99x = 94.07 × 54.89
  4. Step 4: Simplify right side
    62.99x = 5,163.50
  5. Step 5: Solve for x
    x = 5,163.50/62.99
  6. Step 6: Final answer
    x = 81.97

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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.