Home / 89,785.50-123,898.38-49,499.60

Finding the Fourth Proportional to 89,785.50, 123,898.38 and 49,499.60

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Solution

The fourth proportional to 89,785.50, 123,898.38 and 49,499.60 is: 68,306.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,785.50 : 123,898.38 = 49,499.60 : x
  2. Step 2: Convert to fraction form
    89,785.50/123,898.38 = 49,499.60/x
  3. Step 3: Cross multiply
    89,785.50x = 123,898.38 × 49,499.60
  4. Step 4: Simplify right side
    89,785.50x = 6,132,920,250.65
  5. Step 5: Solve for x
    x = 6,132,920,250.65/89,785.50
  6. Step 6: Final answer
    x = 68,306.36

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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.