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Finding the Fourth Proportional to 83.63, 125.47 and 29.53

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Solution

The fourth proportional to 83.63, 125.47 and 29.53 is: 44.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    83.63 : 125.47 = 29.53 : x
  2. Step 2: Convert to fraction form
    83.63/125.47 = 29.53/x
  3. Step 3: Cross multiply
    83.63x = 125.47 × 29.53
  4. Step 4: Simplify right side
    83.63x = 3,705.41
  5. Step 5: Solve for x
    x = 3,705.41/83.63
  6. Step 6: Final answer
    x = 44.31

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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.