Home / 57,121.80-85,707.18-22,086

Finding the Fourth Proportional to 57,121.80, 85,707.18 and 22,086

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Solution

The fourth proportional to 57,121.80, 85,707.18 and 22,086 is: 33,138.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,121.80 : 85,707.18 = 22,086 : x
  2. Step 2: Convert to fraction form
    57,121.80/85,707.18 = 22,086/x
  3. Step 3: Cross multiply
    57,121.80x = 85,707.18 × 22,086
  4. Step 4: Simplify right side
    57,121.80x = 1,892,928,777.48
  5. Step 5: Solve for x
    x = 1,892,928,777.48/57,121.80
  6. Step 6: Final answer
    x = 33,138.47

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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.