Home / 50,143.37-75,215.12-20,555.87

Finding the Fourth Proportional to 50,143.37, 75,215.12 and 20,555.87

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Solution

The fourth proportional to 50,143.37, 75,215.12 and 20,555.87 is: 30,833.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,143.37 : 75,215.12 = 20,555.87 : x
  2. Step 2: Convert to fraction form
    50,143.37/75,215.12 = 20,555.87/x
  3. Step 3: Cross multiply
    50,143.37x = 75,215.12 × 20,555.87
  4. Step 4: Simplify right side
    50,143.37x = 1,546,111,749.90
  5. Step 5: Solve for x
    x = 1,546,111,749.90/50,143.37
  6. Step 6: Final answer
    x = 30,833.83

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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.