Home / 80,488.17-111,073.47-44,678.61

Finding the Fourth Proportional to 80,488.17, 111,073.47 and 44,678.61

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Solution

The fourth proportional to 80,488.17, 111,073.47 and 44,678.61 is: 61,656.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,488.17 : 111,073.47 = 44,678.61 : x
  2. Step 2: Convert to fraction form
    80,488.17/111,073.47 = 44,678.61/x
  3. Step 3: Cross multiply
    80,488.17x = 111,073.47 × 44,678.61
  4. Step 4: Simplify right side
    80,488.17x = 4,962,608,247.48
  5. Step 5: Solve for x
    x = 4,962,608,247.48/80,488.17
  6. Step 6: Final answer
    x = 61,656.37

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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.