Home / 66,171.44-91,279.62-40,660.08

Finding the Fourth Proportional to 66,171.44, 91,279.62 and 40,660.08

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Solution

The fourth proportional to 66,171.44, 91,279.62 and 40,660.08 is: 56,088.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,171.44 : 91,279.62 = 40,660.08 : x
  2. Step 2: Convert to fraction form
    66,171.44/91,279.62 = 40,660.08/x
  3. Step 3: Cross multiply
    66,171.44x = 91,279.62 × 40,660.08
  4. Step 4: Simplify right side
    66,171.44x = 3,711,436,651.57
  5. Step 5: Solve for x
    x = 3,711,436,651.57/66,171.44
  6. Step 6: Final answer
    x = 56,088.20

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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.