Home / 80,544.62-120,714.86-45,504.02

Finding the Fourth Proportional to 80,544.62, 120,714.86 and 45,504.02

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Solution

The fourth proportional to 80,544.62, 120,714.86 and 45,504.02 is: 68,198.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,544.62 : 120,714.86 = 45,504.02 : x
  2. Step 2: Convert to fraction form
    80,544.62/120,714.86 = 45,504.02/x
  3. Step 3: Cross multiply
    80,544.62x = 120,714.86 × 45,504.02
  4. Step 4: Simplify right side
    80,544.62x = 5,493,011,403.74
  5. Step 5: Solve for x
    x = 5,493,011,403.74/80,544.62
  6. Step 6: Final answer
    x = 68,198.37

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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.