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Finding the Fourth Proportional to 36,650.52, 54,979.02 and 20,003.40

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Solution

The fourth proportional to 36,650.52, 54,979.02 and 20,003.40 is: 30,006.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,650.52 : 54,979.02 = 20,003.40 : x
  2. Step 2: Convert to fraction form
    36,650.52/54,979.02 = 20,003.40/x
  3. Step 3: Cross multiply
    36,650.52x = 54,979.02 × 20,003.40
  4. Step 4: Simplify right side
    36,650.52x = 1,099,767,328.67
  5. Step 5: Solve for x
    x = 1,099,767,328.67/36,650.52
  6. Step 6: Final answer
    x = 30,006.87

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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.