Home / 49,716.20-74,516.70-20,119.40

Finding the Fourth Proportional to 49,716.20, 74,516.70 and 20,119.40

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Solution

The fourth proportional to 49,716.20, 74,516.70 and 20,119.40 is: 30,155.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,716.20 : 74,516.70 = 20,119.40 : x
  2. Step 2: Convert to fraction form
    49,716.20/74,516.70 = 20,119.40/x
  3. Step 3: Cross multiply
    49,716.20x = 74,516.70 × 20,119.40
  4. Step 4: Simplify right side
    49,716.20x = 1,499,231,293.98
  5. Step 5: Solve for x
    x = 1,499,231,293.98/49,716.20
  6. Step 6: Final answer
    x = 30,155.79

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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.