Home / 72,794.10-109,190.51-20,203.59

Finding the Fourth Proportional to 72,794.10, 109,190.51 and 20,203.59

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Solution

The fourth proportional to 72,794.10, 109,190.51 and 20,203.59 is: 30,305.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,794.10 : 109,190.51 = 20,203.59 : x
  2. Step 2: Convert to fraction form
    72,794.10/109,190.51 = 20,203.59/x
  3. Step 3: Cross multiply
    72,794.10x = 109,190.51 × 20,203.59
  4. Step 4: Simplify right side
    72,794.10x = 2,206,040,295.93
  5. Step 5: Solve for x
    x = 2,206,040,295.93/72,794.10
  6. Step 6: Final answer
    x = 30,305.21

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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.