Home / 50,912.15-70,257.11-30,761.51

Finding the Fourth Proportional to 50,912.15, 70,257.11 and 30,761.51

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Solution

The fourth proportional to 50,912.15, 70,257.11 and 30,761.51 is: 42,449.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,912.15 : 70,257.11 = 30,761.51 : x
  2. Step 2: Convert to fraction form
    50,912.15/70,257.11 = 30,761.51/x
  3. Step 3: Cross multiply
    50,912.15x = 70,257.11 × 30,761.51
  4. Step 4: Simplify right side
    50,912.15x = 2,161,214,286.74
  5. Step 5: Solve for x
    x = 2,161,214,286.74/50,912.15
  6. Step 6: Final answer
    x = 42,449.88

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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.