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Finding the Fourth Proportional to 36,520.75, 54,781.17 and 8,818.75

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Solution

The fourth proportional to 36,520.75, 54,781.17 and 8,818.75 is: 13,228.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,520.75 : 54,781.17 = 8,818.75 : x
  2. Step 2: Convert to fraction form
    36,520.75/54,781.17 = 8,818.75/x
  3. Step 3: Cross multiply
    36,520.75x = 54,781.17 × 8,818.75
  4. Step 4: Simplify right side
    36,520.75x = 483,101,442.94
  5. Step 5: Solve for x
    x = 483,101,442.94/36,520.75
  6. Step 6: Final answer
    x = 13,228.14

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1.5x scale

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.