Home / 80,521.92-120,699.85-36,161.36

Finding the Fourth Proportional to 80,521.92, 120,699.85 and 36,161.36

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Solution

The fourth proportional to 80,521.92, 120,699.85 and 36,161.36 is: 54,204.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,521.92 : 120,699.85 = 36,161.36 : x
  2. Step 2: Convert to fraction form
    80,521.92/120,699.85 = 36,161.36/x
  3. Step 3: Cross multiply
    80,521.92x = 120,699.85 × 36,161.36
  4. Step 4: Simplify right side
    80,521.92x = 4,364,670,792.08
  5. Step 5: Solve for x
    x = 4,364,670,792.08/80,521.92
  6. Step 6: Final answer
    x = 54,204.75

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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.