Home / 55,230.80-82,772.28-20,137.36

Finding the Fourth Proportional to 55,230.80, 82,772.28 and 20,137.36

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Solution

The fourth proportional to 55,230.80, 82,772.28 and 20,137.36 is: 30,179.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,230.80 : 82,772.28 = 20,137.36 : x
  2. Step 2: Convert to fraction form
    55,230.80/82,772.28 = 20,137.36/x
  3. Step 3: Cross multiply
    55,230.80x = 82,772.28 × 20,137.36
  4. Step 4: Simplify right side
    55,230.80x = 1,666,815,200.38
  5. Step 5: Solve for x
    x = 1,666,815,200.38/55,230.80
  6. Step 6: Final answer
    x = 30,179.09

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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.