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Finding the Fourth Proportional to 60.18, 89.87 and 58.74

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Solution

The fourth proportional to 60.18, 89.87 and 58.74 is: 87.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    60.18 : 89.87 = 58.74 : x
  2. Step 2: Convert to fraction form
    60.18/89.87 = 58.74/x
  3. Step 3: Cross multiply
    60.18x = 89.87 × 58.74
  4. Step 4: Simplify right side
    60.18x = 5,278.67
  5. Step 5: Solve for x
    x = 5,278.67/60.18
  6. Step 6: Final answer
    x = 87.71

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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.