Home / 55,579.67-83,378.21-18,131.09

Finding the Fourth Proportional to 55,579.67, 83,378.21 and 18,131.09

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Solution

The fourth proportional to 55,579.67, 83,378.21 and 18,131.09 is: 27,199.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,579.67 : 83,378.21 = 18,131.09 : x
  2. Step 2: Convert to fraction form
    55,579.67/83,378.21 = 18,131.09/x
  3. Step 3: Cross multiply
    55,579.67x = 83,378.21 × 18,131.09
  4. Step 4: Simplify right side
    55,579.67x = 1,511,737,322.00
  5. Step 5: Solve for x
    x = 1,511,737,322.00/55,579.67
  6. Step 6: Final answer
    x = 27,199.47

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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.