Home / 36,125.28-54,150.72-20,509.92

Finding the Fourth Proportional to 36,125.28, 54,150.72 and 20,509.92

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Solution

The fourth proportional to 36,125.28, 54,150.72 and 20,509.92 is: 30,743.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,125.28 : 54,150.72 = 20,509.92 : x
  2. Step 2: Convert to fraction form
    36,125.28/54,150.72 = 20,509.92/x
  3. Step 3: Cross multiply
    36,125.28x = 54,150.72 × 20,509.92
  4. Step 4: Simplify right side
    36,125.28x = 1,110,626,935.14
  5. Step 5: Solve for x
    x = 1,110,626,935.14/36,125.28
  6. Step 6: Final answer
    x = 30,743.76

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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.