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Finding the Fourth Proportional to 60.36, 82.68 and 59.58

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Solution

The fourth proportional to 60.36, 82.68 and 59.58 is: 81.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    60.36 : 82.68 = 59.58 : x
  2. Step 2: Convert to fraction form
    60.36/82.68 = 59.58/x
  3. Step 3: Cross multiply
    60.36x = 82.68 × 59.58
  4. Step 4: Simplify right side
    60.36x = 4,926.07
  5. Step 5: Solve for x
    x = 4,926.07/60.36
  6. Step 6: Final answer
    x = 81.61

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.