Home / 80,411.64-120,617.78-33,631.71

Finding the Fourth Proportional to 80,411.64, 120,617.78 and 33,631.71

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Solution

The fourth proportional to 80,411.64, 120,617.78 and 33,631.71 is: 50,447.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,411.64 : 120,617.78 = 33,631.71 : x
  2. Step 2: Convert to fraction form
    80,411.64/120,617.78 = 33,631.71/x
  3. Step 3: Cross multiply
    80,411.64x = 120,617.78 × 33,631.71
  4. Step 4: Simplify right side
    80,411.64x = 4,056,582,029.65
  5. Step 5: Solve for x
    x = 4,056,582,029.65/80,411.64
  6. Step 6: Final answer
    x = 50,447.70

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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.