Home / 69,984.05-104,994.17-20,067.80

Finding the Fourth Proportional to 69,984.05, 104,994.17 and 20,067.80

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Solution

The fourth proportional to 69,984.05, 104,994.17 and 20,067.80 is: 30,106.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,984.05 : 104,994.17 = 20,067.80 : x
  2. Step 2: Convert to fraction form
    69,984.05/104,994.17 = 20,067.80/x
  3. Step 3: Cross multiply
    69,984.05x = 104,994.17 × 20,067.80
  4. Step 4: Simplify right side
    69,984.05x = 2,107,001,482.66
  5. Step 5: Solve for x
    x = 2,107,001,482.66/69,984.05
  6. Step 6: Final answer
    x = 30,106.88

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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.