Home / 89,626.47-123,680.04-49,339.20

Finding the Fourth Proportional to 89,626.47, 123,680.04 and 49,339.20

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Solution

The fourth proportional to 89,626.47, 123,680.04 and 49,339.20 is: 68,085.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,626.47 : 123,680.04 = 49,339.20 : x
  2. Step 2: Convert to fraction form
    89,626.47/123,680.04 = 49,339.20/x
  3. Step 3: Cross multiply
    89,626.47x = 123,680.04 × 49,339.20
  4. Step 4: Simplify right side
    89,626.47x = 6,102,274,229.57
  5. Step 5: Solve for x
    x = 6,102,274,229.57/89,626.47
  6. Step 6: Final answer
    x = 68,085.63

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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.