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Finding the Fourth Proportional to 46.33, 69.42 and 32.80

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Solution

The fourth proportional to 46.33, 69.42 and 32.80 is: 49.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.33 : 69.42 = 32.80 : x
  2. Step 2: Convert to fraction form
    46.33/69.42 = 32.80/x
  3. Step 3: Cross multiply
    46.33x = 69.42 × 32.80
  4. Step 4: Simplify right side
    46.33x = 2,276.98
  5. Step 5: Solve for x
    x = 2,276.98/46.33
  6. Step 6: Final answer
    x = 49.15

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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.