Home / 68,986.71-95,185.05-40,290.09

Finding the Fourth Proportional to 68,986.71, 95,185.05 and 40,290.09

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Solution

The fourth proportional to 68,986.71, 95,185.05 and 40,290.09 is: 55,590.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,986.71 : 95,185.05 = 40,290.09 : x
  2. Step 2: Convert to fraction form
    68,986.71/95,185.05 = 40,290.09/x
  3. Step 3: Cross multiply
    68,986.71x = 95,185.05 × 40,290.09
  4. Step 4: Simplify right side
    68,986.71x = 3,835,014,231.15
  5. Step 5: Solve for x
    x = 3,835,014,231.15/68,986.71
  6. Step 6: Final answer
    x = 55,590.62

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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.