Home / 80,488.20-111,073.62-44,678.13

Finding the Fourth Proportional to 80,488.20, 111,073.62 and 44,678.13

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Solution

The fourth proportional to 80,488.20, 111,073.62 and 44,678.13 is: 61,655.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,488.20 : 111,073.62 = 44,678.13 : x
  2. Step 2: Convert to fraction form
    80,488.20/111,073.62 = 44,678.13/x
  3. Step 3: Cross multiply
    80,488.20x = 111,073.62 × 44,678.13
  4. Step 4: Simplify right side
    80,488.20x = 4,962,561,633.93
  5. Step 5: Solve for x
    x = 4,962,561,633.93/80,488.20
  6. Step 6: Final answer
    x = 61,655.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.