Home / 55,216.33-82,836.71-20,155.88

Finding the Fourth Proportional to 55,216.33, 82,836.71 and 20,155.88

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Solution

The fourth proportional to 55,216.33, 82,836.71 and 20,155.88 is: 30,238.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,216.33 : 82,836.71 = 20,155.88 : x
  2. Step 2: Convert to fraction form
    55,216.33/82,836.71 = 20,155.88/x
  3. Step 3: Cross multiply
    55,216.33x = 82,836.71 × 20,155.88
  4. Step 4: Simplify right side
    55,216.33x = 1,669,646,786.35
  5. Step 5: Solve for x
    x = 1,669,646,786.35/55,216.33
  6. Step 6: Final answer
    x = 30,238.28

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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.