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Finding the Fourth Proportional to 79.84, 119.32 and 59.44

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Solution

The fourth proportional to 79.84, 119.32 and 59.44 is: 88.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79.84 : 119.32 = 59.44 : x
  2. Step 2: Convert to fraction form
    79.84/119.32 = 59.44/x
  3. Step 3: Cross multiply
    79.84x = 119.32 × 59.44
  4. Step 4: Simplify right side
    79.84x = 7,092.38
  5. Step 5: Solve for x
    x = 7,092.38/79.84
  6. Step 6: Final answer
    x = 88.83

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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.