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Finding the Fourth Proportional to 69,983.98, 104,994.07 and 20,067.73

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Solution

The fourth proportional to 69,983.98, 104,994.07 and 20,067.73 is: 30,106.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,983.98 : 104,994.07 = 20,067.73 : x
  2. Step 2: Convert to fraction form
    69,983.98/104,994.07 = 20,067.73/x
  3. Step 3: Cross multiply
    69,983.98x = 104,994.07 × 20,067.73
  4. Step 4: Simplify right side
    69,983.98x = 2,106,993,039.18
  5. Step 5: Solve for x
    x = 2,106,993,039.18/69,983.98
  6. Step 6: Final answer
    x = 30,106.79

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1.5x scale

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.