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Finding the Fourth Proportional to 80,226.79, 120,353.86 and 40,264.84

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Solution

The fourth proportional to 80,226.79, 120,353.86 and 40,264.84 is: 60,404.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,226.79 : 120,353.86 = 40,264.84 : x
  2. Step 2: Convert to fraction form
    80,226.79/120,353.86 = 40,264.84/x
  3. Step 3: Cross multiply
    80,226.79x = 120,353.86 × 40,264.84
  4. Step 4: Simplify right side
    80,226.79x = 4,846,028,916.28
  5. Step 5: Solve for x
    x = 4,846,028,916.28/80,226.79
  6. Step 6: Final answer
    x = 60,404.12

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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.