Home / 50,279.20-75,416.37-18,689.20

Finding the Fourth Proportional to 50,279.20, 75,416.37 and 18,689.20

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Solution

The fourth proportional to 50,279.20, 75,416.37 and 18,689.20 is: 28,032.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,279.20 : 75,416.37 = 18,689.20 : x
  2. Step 2: Convert to fraction form
    50,279.20/75,416.37 = 18,689.20/x
  3. Step 3: Cross multiply
    50,279.20x = 75,416.37 × 18,689.20
  4. Step 4: Simplify right side
    50,279.20x = 1,409,471,622.20
  5. Step 5: Solve for x
    x = 1,409,471,622.20/50,279.20
  6. Step 6: Final answer
    x = 28,032.90

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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.