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Finding the Fourth Proportional to 58.55, 87.62 and 39.24

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Solution

The fourth proportional to 58.55, 87.62 and 39.24 is: 58.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.55 : 87.62 = 39.24 : x
  2. Step 2: Convert to fraction form
    58.55/87.62 = 39.24/x
  3. Step 3: Cross multiply
    58.55x = 87.62 × 39.24
  4. Step 4: Simplify right side
    58.55x = 3,438.31
  5. Step 5: Solve for x
    x = 3,438.31/58.55
  6. Step 6: Final answer
    x = 58.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.