Home / 55,028.80-82,543.20-19,963.90

Finding the Fourth Proportional to 55,028.80, 82,543.20 and 19,963.90

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Solution

The fourth proportional to 55,028.80, 82,543.20 and 19,963.90 is: 29,945.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,028.80 : 82,543.20 = 19,963.90 : x
  2. Step 2: Convert to fraction form
    55,028.80/82,543.20 = 19,963.90/x
  3. Step 3: Cross multiply
    55,028.80x = 82,543.20 × 19,963.90
  4. Step 4: Simplify right side
    55,028.80x = 1,647,884,190.48
  5. Step 5: Solve for x
    x = 1,647,884,190.48/55,028.80
  6. Step 6: Final answer
    x = 29,945.85

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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.