Home / 84,183.09-126,179.22-28,009.98

Finding the Fourth Proportional to 84,183.09, 126,179.22 and 28,009.98

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Solution

The fourth proportional to 84,183.09, 126,179.22 and 28,009.98 is: 41,983.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,183.09 : 126,179.22 = 28,009.98 : x
  2. Step 2: Convert to fraction form
    84,183.09/126,179.22 = 28,009.98/x
  3. Step 3: Cross multiply
    84,183.09x = 126,179.22 × 28,009.98
  4. Step 4: Simplify right side
    84,183.09x = 3,534,277,428.62
  5. Step 5: Solve for x
    x = 3,534,277,428.62/84,183.09
  6. Step 6: Final answer
    x = 41,983.22

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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.