Home / 69,965.22-104,947.31-20,045.36

Finding the Fourth Proportional to 69,965.22, 104,947.31 and 20,045.36

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Solution

The fourth proportional to 69,965.22, 104,947.31 and 20,045.36 is: 30,067.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,965.22 : 104,947.31 = 20,045.36 : x
  2. Step 2: Convert to fraction form
    69,965.22/104,947.31 = 20,045.36/x
  3. Step 3: Cross multiply
    69,965.22x = 104,947.31 × 20,045.36
  4. Step 4: Simplify right side
    69,965.22x = 2,103,706,922.46
  5. Step 5: Solve for x
    x = 2,103,706,922.46/69,965.22
  6. Step 6: Final answer
    x = 30,067.89

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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.