Home / 83,910.40-125,865.93-33,991.43

Finding the Fourth Proportional to 83,910.40, 125,865.93 and 33,991.43

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Solution

The fourth proportional to 83,910.40, 125,865.93 and 33,991.43 is: 50,987.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,910.40 : 125,865.93 = 33,991.43 : x
  2. Step 2: Convert to fraction form
    83,910.40/125,865.93 = 33,991.43/x
  3. Step 3: Cross multiply
    83,910.40x = 125,865.93 × 33,991.43
  4. Step 4: Simplify right side
    83,910.40x = 4,278,362,948.98
  5. Step 5: Solve for x
    x = 4,278,362,948.98/83,910.40
  6. Step 6: Final answer
    x = 50,987.28

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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.