Home / 50,450.20-75,621.30-17,139.40

Finding the Fourth Proportional to 50,450.20, 75,621.30 and 17,139.40

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Solution

The fourth proportional to 50,450.20, 75,621.30 and 17,139.40 is: 25,690.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,450.20 : 75,621.30 = 17,139.40 : x
  2. Step 2: Convert to fraction form
    50,450.20/75,621.30 = 17,139.40/x
  3. Step 3: Cross multiply
    50,450.20x = 75,621.30 × 17,139.40
  4. Step 4: Simplify right side
    50,450.20x = 1,296,103,709.22
  5. Step 5: Solve for x
    x = 1,296,103,709.22/50,450.20
  6. Step 6: Final answer
    x = 25,690.75

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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.