Home / 120,591.59-180,887.78-50,421.69

Finding the Fourth Proportional to 120,591.59, 180,887.78 and 50,421.69

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Solution

The fourth proportional to 120,591.59, 180,887.78 and 50,421.69 is: 75,632.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,591.59 : 180,887.78 = 50,421.69 : x
  2. Step 2: Convert to fraction form
    120,591.59/180,887.78 = 50,421.69/x
  3. Step 3: Cross multiply
    120,591.59x = 180,887.78 × 50,421.69
  4. Step 4: Simplify right side
    120,591.59x = 9,120,667,694.00
  5. Step 5: Solve for x
    x = 9,120,667,694.00/120,591.59
  6. Step 6: Final answer
    x = 75,632.70

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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.