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Finding the Fourth Proportional to 60, 89.32 and 58.48

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Solution

The fourth proportional to 60, 89.32 and 58.48 is: 87.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    60 : 89.32 = 58.48 : x
  2. Step 2: Convert to fraction form
    60/89.32 = 58.48/x
  3. Step 3: Cross multiply
    60x = 89.32 × 58.48
  4. Step 4: Simplify right side
    60x = 5,223.43
  5. Step 5: Solve for x
    x = 5,223.43/60
  6. Step 6: Final answer
    x = 87.06

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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.