Home / 55,131.60-82,697.40-18,190.80

Finding the Fourth Proportional to 55,131.60, 82,697.40 and 18,190.80

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Solution

The fourth proportional to 55,131.60, 82,697.40 and 18,190.80 is: 27,286.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,131.60 : 82,697.40 = 18,190.80 : x
  2. Step 2: Convert to fraction form
    55,131.60/82,697.40 = 18,190.80/x
  3. Step 3: Cross multiply
    55,131.60x = 82,697.40 × 18,190.80
  4. Step 4: Simplify right side
    55,131.60x = 1,504,331,863.92
  5. Step 5: Solve for x
    x = 1,504,331,863.92/55,131.60
  6. Step 6: Final answer
    x = 27,286.20

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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.