Home / 55,257.36-82,891.92-20,204.64

Finding the Fourth Proportional to 55,257.36, 82,891.92 and 20,204.64

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Solution

The fourth proportional to 55,257.36, 82,891.92 and 20,204.64 is: 30,309.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,257.36 : 82,891.92 = 20,204.64 : x
  2. Step 2: Convert to fraction form
    55,257.36/82,891.92 = 20,204.64/x
  3. Step 3: Cross multiply
    55,257.36x = 82,891.92 × 20,204.64
  4. Step 4: Simplify right side
    55,257.36x = 1,674,801,402.51
  5. Step 5: Solve for x
    x = 1,674,801,402.51/55,257.36
  6. Step 6: Final answer
    x = 30,309.11

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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.