Home / 55,201.78-82,804.04-20,141.44

Finding the Fourth Proportional to 55,201.78, 82,804.04 and 20,141.44

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Solution

The fourth proportional to 55,201.78, 82,804.04 and 20,141.44 is: 30,212.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,201.78 : 82,804.04 = 20,141.44 : x
  2. Step 2: Convert to fraction form
    55,201.78/82,804.04 = 20,141.44/x
  3. Step 3: Cross multiply
    55,201.78x = 82,804.04 × 20,141.44
  4. Step 4: Simplify right side
    55,201.78x = 1,667,792,603.42
  5. Step 5: Solve for x
    x = 1,667,792,603.42/55,201.78
  6. Step 6: Final answer
    x = 30,212.66

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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.