Home / 55,829.21-83,755.34-18,391.56

Finding the Fourth Proportional to 55,829.21, 83,755.34 and 18,391.56

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Solution

The fourth proportional to 55,829.21, 83,755.34 and 18,391.56 is: 27,591.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,829.21 : 83,755.34 = 18,391.56 : x
  2. Step 2: Convert to fraction form
    55,829.21/83,755.34 = 18,391.56/x
  3. Step 3: Cross multiply
    55,829.21x = 83,755.34 × 18,391.56
  4. Step 4: Simplify right side
    55,829.21x = 1,540,391,268.97
  5. Step 5: Solve for x
    x = 1,540,391,268.97/55,829.21
  6. Step 6: Final answer
    x = 27,591.14

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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.