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Finding the Fourth Proportional to 59.75, 82.45 and 43.46

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Solution

The fourth proportional to 59.75, 82.45 and 43.46 is: 59.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    59.75 : 82.45 = 43.46 : x
  2. Step 2: Convert to fraction form
    59.75/82.45 = 43.46/x
  3. Step 3: Cross multiply
    59.75x = 82.45 × 43.46
  4. Step 4: Simplify right side
    59.75x = 3,583.28
  5. Step 5: Solve for x
    x = 3,583.28/59.75
  6. Step 6: Final answer
    x = 59.97

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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.