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Finding the Fourth Proportional to 59.69, 82.38 and 41.28

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Solution

The fourth proportional to 59.69, 82.38 and 41.28 is: 56.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    59.69 : 82.38 = 41.28 : x
  2. Step 2: Convert to fraction form
    59.69/82.38 = 41.28/x
  3. Step 3: Cross multiply
    59.69x = 82.38 × 41.28
  4. Step 4: Simplify right side
    59.69x = 3,400.65
  5. Step 5: Solve for x
    x = 3,400.65/59.69
  6. Step 6: Final answer
    x = 56.98

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Why These Related Problems?

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