Home / 82,629.77-123,752.41-80,356.91

Finding the Fourth Proportional to 82,629.77, 123,752.41 and 80,356.91

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Solution

The fourth proportional to 82,629.77, 123,752.41 and 80,356.91 is: 120,348.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,629.77 : 123,752.41 = 80,356.91 : x
  2. Step 2: Convert to fraction form
    82,629.77/123,752.41 = 80,356.91/x
  3. Step 3: Cross multiply
    82,629.77x = 123,752.41 × 80,356.91
  4. Step 4: Simplify right side
    82,629.77x = 9,944,361,272.65
  5. Step 5: Solve for x
    x = 9,944,361,272.65/82,629.77
  6. Step 6: Final answer
    x = 120,348.41

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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.