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Finding the Fourth Proportional to 36,568, 54,799.52 and 19,891.68

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Solution

The fourth proportional to 36,568, 54,799.52 and 19,891.68 is: 29,808.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,568 : 54,799.52 = 19,891.68 : x
  2. Step 2: Convert to fraction form
    36,568/54,799.52 = 19,891.68/x
  3. Step 3: Cross multiply
    36,568x = 54,799.52 × 19,891.68
  4. Step 4: Simplify right side
    36,568x = 1,090,054,515.99
  5. Step 5: Solve for x
    x = 1,090,054,515.99/36,568
  6. Step 6: Final answer
    x = 29,808.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.