Home / 66,249.38-99,371.71-18,864.70

Finding the Fourth Proportional to 66,249.38, 99,371.71 and 18,864.70

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Solution

The fourth proportional to 66,249.38, 99,371.71 and 18,864.70 is: 28,296.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,249.38 : 99,371.71 = 18,864.70 : x
  2. Step 2: Convert to fraction form
    66,249.38/99,371.71 = 18,864.70/x
  3. Step 3: Cross multiply
    66,249.38x = 99,371.71 × 18,864.70
  4. Step 4: Simplify right side
    66,249.38x = 1,874,617,497.64
  5. Step 5: Solve for x
    x = 1,874,617,497.64/66,249.38
  6. Step 6: Final answer
    x = 28,296.38

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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.