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Finding the Fourth Proportional to 60.11, 89.61 and 58.74

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Solution

The fourth proportional to 60.11, 89.61 and 58.74 is: 87.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    60.11 : 89.61 = 58.74 : x
  2. Step 2: Convert to fraction form
    60.11/89.61 = 58.74/x
  3. Step 3: Cross multiply
    60.11x = 89.61 × 58.74
  4. Step 4: Simplify right side
    60.11x = 5,263.69
  5. Step 5: Solve for x
    x = 5,263.69/60.11
  6. Step 6: Final answer
    x = 87.57

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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.