Home / 50,286.39-75,439.31-19,119.21

Finding the Fourth Proportional to 50,286.39, 75,439.31 and 19,119.21

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Solution

The fourth proportional to 50,286.39, 75,439.31 and 19,119.21 is: 28,682.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,286.39 : 75,439.31 = 19,119.21 : x
  2. Step 2: Convert to fraction form
    50,286.39/75,439.31 = 19,119.21/x
  3. Step 3: Cross multiply
    50,286.39x = 75,439.31 × 19,119.21
  4. Step 4: Simplify right side
    50,286.39x = 1,442,339,914.55
  5. Step 5: Solve for x
    x = 1,442,339,914.55/50,286.39
  6. Step 6: Final answer
    x = 28,682.51

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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.