Home / 80,415.10-120,665.85-33,672.70

Finding the Fourth Proportional to 80,415.10, 120,665.85 and 33,672.70

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Solution

The fourth proportional to 80,415.10, 120,665.85 and 33,672.70 is: 50,527.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,415.10 : 120,665.85 = 33,672.70 : x
  2. Step 2: Convert to fraction form
    80,415.10/120,665.85 = 33,672.70/x
  3. Step 3: Cross multiply
    80,415.10x = 120,665.85 × 33,672.70
  4. Step 4: Simplify right side
    80,415.10x = 4,063,144,967.30
  5. Step 5: Solve for x
    x = 4,063,144,967.30/80,415.10
  6. Step 6: Final answer
    x = 50,527.14

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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.