Home / 55,163.68-82,743.64-30,215.48

Finding the Fourth Proportional to 55,163.68, 82,743.64 and 30,215.48

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Solution

The fourth proportional to 55,163.68, 82,743.64 and 30,215.48 is: 45,322.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,163.68 : 82,743.64 = 30,215.48 : x
  2. Step 2: Convert to fraction form
    55,163.68/82,743.64 = 30,215.48/x
  3. Step 3: Cross multiply
    55,163.68x = 82,743.64 × 30,215.48
  4. Step 4: Simplify right side
    55,163.68x = 2,500,138,799.55
  5. Step 5: Solve for x
    x = 2,500,138,799.55/55,163.68
  6. Step 6: Final answer
    x = 45,322.19

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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.