Home / 89,727.90-123,830.03-49,441.65

Finding the Fourth Proportional to 89,727.90, 123,830.03 and 49,441.65

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Solution

The fourth proportional to 89,727.90, 123,830.03 and 49,441.65 is: 68,232.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,727.90 : 123,830.03 = 49,441.65 : x
  2. Step 2: Convert to fraction form
    89,727.90/123,830.03 = 49,441.65/x
  3. Step 3: Cross multiply
    89,727.90x = 123,830.03 × 49,441.65
  4. Step 4: Simplify right side
    89,727.90x = 6,122,360,755.54
  5. Step 5: Solve for x
    x = 6,122,360,755.54/89,727.90
  6. Step 6: Final answer
    x = 68,232.52

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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.