Home / 89,786.66-123,920.21-54,012.83

Finding the Fourth Proportional to 89,786.66, 123,920.21 and 54,012.83

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Solution

The fourth proportional to 89,786.66, 123,920.21 and 54,012.83 is: 74,546.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,786.66 : 123,920.21 = 54,012.83 : x
  2. Step 2: Convert to fraction form
    89,786.66/123,920.21 = 54,012.83/x
  3. Step 3: Cross multiply
    89,786.66x = 123,920.21 × 54,012.83
  4. Step 4: Simplify right side
    89,786.66x = 6,693,280,751.73
  5. Step 5: Solve for x
    x = 6,693,280,751.73/89,786.66
  6. Step 6: Final answer
    x = 74,546.50

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1.5x scale

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.