Home / 50,079.45-75,129.20-18,489.71

Finding the Fourth Proportional to 50,079.45, 75,129.20 and 18,489.71

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Solution

The fourth proportional to 50,079.45, 75,129.20 and 18,489.71 is: 27,738.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,079.45 : 75,129.20 = 18,489.71 : x
  2. Step 2: Convert to fraction form
    50,079.45/75,129.20 = 18,489.71/x
  3. Step 3: Cross multiply
    50,079.45x = 75,129.20 × 18,489.71
  4. Step 4: Simplify right side
    50,079.45x = 1,389,116,652.44
  5. Step 5: Solve for x
    x = 1,389,116,652.44/50,079.45
  6. Step 6: Final answer
    x = 27,738.26

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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.