Home / 75,921.46-113,727.48-45,917.44

Finding the Fourth Proportional to 75,921.46, 113,727.48 and 45,917.44

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Solution

The fourth proportional to 75,921.46, 113,727.48 and 45,917.44 is: 68,782.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,921.46 : 113,727.48 = 45,917.44 : x
  2. Step 2: Convert to fraction form
    75,921.46/113,727.48 = 45,917.44/x
  3. Step 3: Cross multiply
    75,921.46x = 113,727.48 × 45,917.44
  4. Step 4: Simplify right side
    75,921.46x = 5,222,074,739.25
  5. Step 5: Solve for x
    x = 5,222,074,739.25/75,921.46
  6. Step 6: Final answer
    x = 68,782.59

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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.