Home / 57,135.75-85,736.43-44,620.65

Finding the Fourth Proportional to 57,135.75, 85,736.43 and 44,620.65

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Solution

The fourth proportional to 57,135.75, 85,736.43 and 44,620.65 is: 66,956.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,135.75 : 85,736.43 = 44,620.65 : x
  2. Step 2: Convert to fraction form
    57,135.75/85,736.43 = 44,620.65/x
  3. Step 3: Cross multiply
    57,135.75x = 85,736.43 × 44,620.65
  4. Step 4: Simplify right side
    57,135.75x = 3,825,615,235.28
  5. Step 5: Solve for x
    x = 3,825,615,235.28/57,135.75
  6. Step 6: Final answer
    x = 66,956.59

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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.