Home / 55,186.20-82,780.82-20,151.96

Finding the Fourth Proportional to 55,186.20, 82,780.82 and 20,151.96

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Solution

The fourth proportional to 55,186.20, 82,780.82 and 20,151.96 is: 30,228.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,186.20 : 82,780.82 = 20,151.96 : x
  2. Step 2: Convert to fraction form
    55,186.20/82,780.82 = 20,151.96/x
  3. Step 3: Cross multiply
    55,186.20x = 82,780.82 × 20,151.96
  4. Step 4: Simplify right side
    55,186.20x = 1,668,195,773.41
  5. Step 5: Solve for x
    x = 1,668,195,773.41/55,186.20
  6. Step 6: Final answer
    x = 30,228.50

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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.