Home / 213,629.55-320,462.62-55,857.75

Finding the Fourth Proportional to 213,629.55, 320,462.62 and 55,857.75

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Solution

The fourth proportional to 213,629.55, 320,462.62 and 55,857.75 is: 83,791.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,629.55 : 320,462.62 = 55,857.75 : x
  2. Step 2: Convert to fraction form
    213,629.55/320,462.62 = 55,857.75/x
  3. Step 3: Cross multiply
    213,629.55x = 320,462.62 × 55,857.75
  4. Step 4: Simplify right side
    213,629.55x = 17,900,320,772.66
  5. Step 5: Solve for x
    x = 17,900,320,772.66/213,629.55
  6. Step 6: Final answer
    x = 83,791.41

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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.