Home / 55,203.28-82,806.29-20,142.94

Finding the Fourth Proportional to 55,203.28, 82,806.29 and 20,142.94

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Solution

The fourth proportional to 55,203.28, 82,806.29 and 20,142.94 is: 30,214.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,203.28 : 82,806.29 = 20,142.94 : x
  2. Step 2: Convert to fraction form
    55,203.28/82,806.29 = 20,142.94/x
  3. Step 3: Cross multiply
    55,203.28x = 82,806.29 × 20,142.94
  4. Step 4: Simplify right side
    55,203.28x = 1,667,962,131.09
  5. Step 5: Solve for x
    x = 1,667,962,131.09/55,203.28
  6. Step 6: Final answer
    x = 30,214.91

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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.