Home / 80,183.74-120,271.25-30,262.63

Finding the Fourth Proportional to 80,183.74, 120,271.25 and 30,262.63

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Solution

The fourth proportional to 80,183.74, 120,271.25 and 30,262.63 is: 45,392.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,183.74 : 120,271.25 = 30,262.63 : x
  2. Step 2: Convert to fraction form
    80,183.74/120,271.25 = 30,262.63/x
  3. Step 3: Cross multiply
    80,183.74x = 120,271.25 × 30,262.63
  4. Step 4: Simplify right side
    80,183.74x = 3,639,724,338.39
  5. Step 5: Solve for x
    x = 3,639,724,338.39/80,183.74
  6. Step 6: Final answer
    x = 45,392.30

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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.