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Finding the Fourth Proportional to 89,802, 123,924.39 and 49,515.09

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Solution

The fourth proportional to 89,802, 123,924.39 and 49,515.09 is: 68,329.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,802 : 123,924.39 = 49,515.09 : x
  2. Step 2: Convert to fraction form
    89,802/123,924.39 = 49,515.09/x
  3. Step 3: Cross multiply
    89,802x = 123,924.39 × 49,515.09
  4. Step 4: Simplify right side
    89,802x = 6,136,127,324.05
  5. Step 5: Solve for x
    x = 6,136,127,324.05/89,802
  6. Step 6: Final answer
    x = 68,329.52

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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.