Home / 66,399.22-91,628.26-36,183.90

Finding the Fourth Proportional to 66,399.22, 91,628.26 and 36,183.90

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Solution

The fourth proportional to 66,399.22, 91,628.26 and 36,183.90 is: 49,932.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,399.22 : 91,628.26 = 36,183.90 : x
  2. Step 2: Convert to fraction form
    66,399.22/91,628.26 = 36,183.90/x
  3. Step 3: Cross multiply
    66,399.22x = 91,628.26 × 36,183.90
  4. Step 4: Simplify right side
    66,399.22x = 3,315,467,957.83
  5. Step 5: Solve for x
    x = 3,315,467,957.83/66,399.22
  6. Step 6: Final answer
    x = 49,932.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.