Home / 84,676.33-126,993.94-28,501.82

Finding the Fourth Proportional to 84,676.33, 126,993.94 and 28,501.82

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Solution

The fourth proportional to 84,676.33, 126,993.94 and 28,501.82 is: 42,745.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,676.33 : 126,993.94 = 28,501.82 : x
  2. Step 2: Convert to fraction form
    84,676.33/126,993.94 = 28,501.82/x
  3. Step 3: Cross multiply
    84,676.33x = 126,993.94 × 28,501.82
  4. Step 4: Simplify right side
    84,676.33x = 3,619,557,712.75
  5. Step 5: Solve for x
    x = 3,619,557,712.75/84,676.33
  6. Step 6: Final answer
    x = 42,745.80

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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.