Home / 80,143.81-120,226.65-33,385.75

Finding the Fourth Proportional to 80,143.81, 120,226.65 and 33,385.75

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Solution

The fourth proportional to 80,143.81, 120,226.65 and 33,385.75 is: 50,083.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,143.81 : 120,226.65 = 33,385.75 : x
  2. Step 2: Convert to fraction form
    80,143.81/120,226.65 = 33,385.75/x
  3. Step 3: Cross multiply
    80,143.81x = 120,226.65 × 33,385.75
  4. Step 4: Simplify right side
    80,143.81x = 4,013,856,880.24
  5. Step 5: Solve for x
    x = 4,013,856,880.24/80,143.81
  6. Step 6: Final answer
    x = 50,083.18

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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.