Home / 66,205.45-91,364.11-35,990.83

Finding the Fourth Proportional to 66,205.45, 91,364.11 and 35,990.83

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Solution

The fourth proportional to 66,205.45, 91,364.11 and 35,990.83 is: 49,667.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,205.45 : 91,364.11 = 35,990.83 : x
  2. Step 2: Convert to fraction form
    66,205.45/91,364.11 = 35,990.83/x
  3. Step 3: Cross multiply
    66,205.45x = 91,364.11 × 35,990.83
  4. Step 4: Simplify right side
    66,205.45x = 3,288,269,832.72
  5. Step 5: Solve for x
    x = 3,288,269,832.72/66,205.45
  6. Step 6: Final answer
    x = 49,667.66

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1.5x scale

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.