Home / 55,806-83,721.34-18,377.60

Finding the Fourth Proportional to 55,806, 83,721.34 and 18,377.60

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Solution

The fourth proportional to 55,806, 83,721.34 and 18,377.60 is: 27,570.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,806 : 83,721.34 = 18,377.60 : x
  2. Step 2: Convert to fraction form
    55,806/83,721.34 = 18,377.60/x
  3. Step 3: Cross multiply
    55,806x = 83,721.34 × 18,377.60
  4. Step 4: Simplify right side
    55,806x = 1,538,597,297.98
  5. Step 5: Solve for x
    x = 1,538,597,297.98/55,806
  6. Step 6: Final answer
    x = 27,570.46

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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.