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Finding the Fourth Proportional to 55,163.56, 82,786.92 and 40,410.22

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Solution

The fourth proportional to 55,163.56, 82,786.92 and 40,410.22 is: 60,645.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,163.56 : 82,786.92 = 40,410.22 : x
  2. Step 2: Convert to fraction form
    55,163.56/82,786.92 = 40,410.22/x
  3. Step 3: Cross multiply
    55,163.56x = 82,786.92 × 40,410.22
  4. Step 4: Simplify right side
    55,163.56x = 3,345,437,650.32
  5. Step 5: Solve for x
    x = 3,345,437,650.32/55,163.56
  6. Step 6: Final answer
    x = 60,645.79

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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.