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Finding the Fourth Proportional to 59.28, 82.18 and 58.44

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Solution

The fourth proportional to 59.28, 82.18 and 58.44 is: 81.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    59.28 : 82.18 = 58.44 : x
  2. Step 2: Convert to fraction form
    59.28/82.18 = 58.44/x
  3. Step 3: Cross multiply
    59.28x = 82.18 × 58.44
  4. Step 4: Simplify right side
    59.28x = 4,802.60
  5. Step 5: Solve for x
    x = 4,802.60/59.28
  6. Step 6: Final answer
    x = 81.02

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Why These Related Problems?

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