Home / 87,917.10-131,896.38-28,752.54

Finding the Fourth Proportional to 87,917.10, 131,896.38 and 28,752.54

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Solution

The fourth proportional to 87,917.10, 131,896.38 and 28,752.54 is: 43,135.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,917.10 : 131,896.38 = 28,752.54 : x
  2. Step 2: Convert to fraction form
    87,917.10/131,896.38 = 28,752.54/x
  3. Step 3: Cross multiply
    87,917.10x = 131,896.38 × 28,752.54
  4. Step 4: Simplify right side
    87,917.10x = 3,792,355,941.81
  5. Step 5: Solve for x
    x = 3,792,355,941.81/87,917.10
  6. Step 6: Final answer
    x = 43,135.59

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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.