Home / 68,304.03-102,471.09-20,919.48

Finding the Fourth Proportional to 68,304.03, 102,471.09 and 20,919.48

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Solution

The fourth proportional to 68,304.03, 102,471.09 and 20,919.48 is: 31,383.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,304.03 : 102,471.09 = 20,919.48 : x
  2. Step 2: Convert to fraction form
    68,304.03/102,471.09 = 20,919.48/x
  3. Step 3: Cross multiply
    68,304.03x = 102,471.09 × 20,919.48
  4. Step 4: Simplify right side
    68,304.03x = 2,143,641,917.83
  5. Step 5: Solve for x
    x = 2,143,641,917.83/68,304.03
  6. Step 6: Final answer
    x = 31,383.83

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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.