Home / 55,791.28-83,687.38-20,730.94

Finding the Fourth Proportional to 55,791.28, 83,687.38 and 20,730.94

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Solution

The fourth proportional to 55,791.28, 83,687.38 and 20,730.94 is: 31,096.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,791.28 : 83,687.38 = 20,730.94 : x
  2. Step 2: Convert to fraction form
    55,791.28/83,687.38 = 20,730.94/x
  3. Step 3: Cross multiply
    55,791.28x = 83,687.38 × 20,730.94
  4. Step 4: Simplify right side
    55,791.28x = 1,734,917,792.49
  5. Step 5: Solve for x
    x = 1,734,917,792.49/55,791.28
  6. Step 6: Final answer
    x = 31,096.58

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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.