Home / 80,519.34-120,715.46-50,874.70

Finding the Fourth Proportional to 80,519.34, 120,715.46 and 50,874.70

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Solution

The fourth proportional to 80,519.34, 120,715.46 and 50,874.70 is: 76,271.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,519.34 : 120,715.46 = 50,874.70 : x
  2. Step 2: Convert to fraction form
    80,519.34/120,715.46 = 50,874.70/x
  3. Step 3: Cross multiply
    80,519.34x = 120,715.46 × 50,874.70
  4. Step 4: Simplify right side
    80,519.34x = 6,141,362,812.86
  5. Step 5: Solve for x
    x = 6,141,362,812.86/80,519.34
  6. Step 6: Final answer
    x = 76,271.90

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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.