Home / 55,190.28-82,797.76-20,129.94

Finding the Fourth Proportional to 55,190.28, 82,797.76 and 20,129.94

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Solution

The fourth proportional to 55,190.28, 82,797.76 and 20,129.94 is: 30,199.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,190.28 : 82,797.76 = 20,129.94 : x
  2. Step 2: Convert to fraction form
    55,190.28/82,797.76 = 20,129.94/x
  3. Step 3: Cross multiply
    55,190.28x = 82,797.76 × 20,129.94
  4. Step 4: Simplify right side
    55,190.28x = 1,666,713,940.93
  5. Step 5: Solve for x
    x = 1,666,713,940.93/55,190.28
  6. Step 6: Final answer
    x = 30,199.41

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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.