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Finding the Fourth Proportional to 80,633.57, 120,975.86 and 36,264.20

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Solution

The fourth proportional to 80,633.57, 120,975.86 and 36,264.20 is: 54,407.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,633.57 : 120,975.86 = 36,264.20 : x
  2. Step 2: Convert to fraction form
    80,633.57/120,975.86 = 36,264.20/x
  3. Step 3: Cross multiply
    80,633.57x = 120,975.86 × 36,264.20
  4. Step 4: Simplify right side
    80,633.57x = 4,387,092,782.21
  5. Step 5: Solve for x
    x = 4,387,092,782.21/80,633.57
  6. Step 6: Final answer
    x = 54,407.77

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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.