Home / 66,609.09-91,919.46-36,393.77

Finding the Fourth Proportional to 66,609.09, 91,919.46 and 36,393.77

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Solution

The fourth proportional to 66,609.09, 91,919.46 and 36,393.77 is: 50,222.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,609.09 : 91,919.46 = 36,393.77 : x
  2. Step 2: Convert to fraction form
    66,609.09/91,919.46 = 36,393.77/x
  3. Step 3: Cross multiply
    66,609.09x = 91,919.46 × 36,393.77
  4. Step 4: Simplify right side
    66,609.09x = 3,345,295,226.17
  5. Step 5: Solve for x
    x = 3,345,295,226.17/66,609.09
  6. Step 6: Final answer
    x = 50,222.80

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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.