Home / 49,783.80-68,672.70-31,872.36

Finding the Fourth Proportional to 49,783.80, 68,672.70 and 31,872.36

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Solution

The fourth proportional to 49,783.80, 68,672.70 and 31,872.36 is: 43,965.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,783.80 : 68,672.70 = 31,872.36 : x
  2. Step 2: Convert to fraction form
    49,783.80/68,672.70 = 31,872.36/x
  3. Step 3: Cross multiply
    49,783.80x = 68,672.70 × 31,872.36
  4. Step 4: Simplify right side
    49,783.80x = 2,188,761,016.57
  5. Step 5: Solve for x
    x = 2,188,761,016.57/49,783.80
  6. Step 6: Final answer
    x = 43,965.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.