Home / 80,991.56-121,486.46-27,683.03

Finding the Fourth Proportional to 80,991.56, 121,486.46 and 27,683.03

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Solution

The fourth proportional to 80,991.56, 121,486.46 and 27,683.03 is: 41,524.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,991.56 : 121,486.46 = 27,683.03 : x
  2. Step 2: Convert to fraction form
    80,991.56/121,486.46 = 27,683.03/x
  3. Step 3: Cross multiply
    80,991.56x = 121,486.46 × 27,683.03
  4. Step 4: Simplify right side
    80,991.56x = 3,363,112,570.93
  5. Step 5: Solve for x
    x = 3,363,112,570.93/80,991.56
  6. Step 6: Final answer
    x = 41,524.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.