Home / 83,912.10-125,868.50-33,993.15

Finding the Fourth Proportional to 83,912.10, 125,868.50 and 33,993.15

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Solution

The fourth proportional to 83,912.10, 125,868.50 and 33,993.15 is: 50,989.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,912.10 : 125,868.50 = 33,993.15 : x
  2. Step 2: Convert to fraction form
    83,912.10/125,868.50 = 33,993.15/x
  3. Step 3: Cross multiply
    83,912.10x = 125,868.50 × 33,993.15
  4. Step 4: Simplify right side
    83,912.10x = 4,278,666,630.81
  5. Step 5: Solve for x
    x = 4,278,666,630.81/83,912.10
  6. Step 6: Final answer
    x = 50,989.86

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1.5x scale

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.