Home / 80,617.14-120,856.32-35,604.36

Finding the Fourth Proportional to 80,617.14, 120,856.32 and 35,604.36

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Solution

The fourth proportional to 80,617.14, 120,856.32 and 35,604.36 is: 53,375.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,617.14 : 120,856.32 = 35,604.36 : x
  2. Step 2: Convert to fraction form
    80,617.14/120,856.32 = 35,604.36/x
  3. Step 3: Cross multiply
    80,617.14x = 120,856.32 × 35,604.36
  4. Step 4: Simplify right side
    80,617.14x = 4,303,011,925.56
  5. Step 5: Solve for x
    x = 4,303,011,925.56/80,617.14
  6. Step 6: Final answer
    x = 53,375.89

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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.