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Finding the Fourth Proportional to 41.58, 62.06 and 31.38

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Solution

The fourth proportional to 41.58, 62.06 and 31.38 is: 46.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    41.58 : 62.06 = 31.38 : x
  2. Step 2: Convert to fraction form
    41.58/62.06 = 31.38/x
  3. Step 3: Cross multiply
    41.58x = 62.06 × 31.38
  4. Step 4: Simplify right side
    41.58x = 1,947.29
  5. Step 5: Solve for x
    x = 1,947.29/41.58
  6. Step 6: Final answer
    x = 46.84

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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.