Home / 55,223.36-82,789.68-20,140.64

Finding the Fourth Proportional to 55,223.36, 82,789.68 and 20,140.64

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Solution

The fourth proportional to 55,223.36, 82,789.68 and 20,140.64 is: 30,194.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,223.36 : 82,789.68 = 20,140.64 : x
  2. Step 2: Convert to fraction form
    55,223.36/82,789.68 = 20,140.64/x
  3. Step 3: Cross multiply
    55,223.36x = 82,789.68 × 20,140.64
  4. Step 4: Simplify right side
    55,223.36x = 1,667,437,140.60
  5. Step 5: Solve for x
    x = 1,667,437,140.60/55,223.36
  6. Step 6: Final answer
    x = 30,194.42

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1.5x scale

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.