Home / 66,906.27-92,334.74-38,613.78

Finding the Fourth Proportional to 66,906.27, 92,334.74 and 38,613.78

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Solution

The fourth proportional to 66,906.27, 92,334.74 and 38,613.78 is: 53,289.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,906.27 : 92,334.74 = 38,613.78 : x
  2. Step 2: Convert to fraction form
    66,906.27/92,334.74 = 38,613.78/x
  3. Step 3: Cross multiply
    66,906.27x = 92,334.74 × 38,613.78
  4. Step 4: Simplify right side
    66,906.27x = 3,565,393,143.65
  5. Step 5: Solve for x
    x = 3,565,393,143.65/66,906.27
  6. Step 6: Final answer
    x = 53,289.37

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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.