Home / 80,439.03-111,003.75-44,140.37

Finding the Fourth Proportional to 80,439.03, 111,003.75 and 44,140.37

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Solution

The fourth proportional to 80,439.03, 111,003.75 and 44,140.37 is: 60,912.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,439.03 : 111,003.75 = 44,140.37 : x
  2. Step 2: Convert to fraction form
    80,439.03/111,003.75 = 44,140.37/x
  3. Step 3: Cross multiply
    80,439.03x = 111,003.75 × 44,140.37
  4. Step 4: Simplify right side
    80,439.03x = 4,899,746,041.37
  5. Step 5: Solve for x
    x = 4,899,746,041.37/80,439.03
  6. Step 6: Final answer
    x = 60,912.55

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1.5x scale

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.