Home / 84,198.12-126,361.41-30,940.56

Finding the Fourth Proportional to 84,198.12, 126,361.41 and 30,940.56

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Solution

The fourth proportional to 84,198.12, 126,361.41 and 30,940.56 is: 46,434.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,198.12 : 126,361.41 = 30,940.56 : x
  2. Step 2: Convert to fraction form
    84,198.12/126,361.41 = 30,940.56/x
  3. Step 3: Cross multiply
    84,198.12x = 126,361.41 × 30,940.56
  4. Step 4: Simplify right side
    84,198.12x = 3,909,692,787.79
  5. Step 5: Solve for x
    x = 3,909,692,787.79/84,198.12
  6. Step 6: Final answer
    x = 46,434.44

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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.