Home / 87,916.10-131,894.88-28,751.54

Finding the Fourth Proportional to 87,916.10, 131,894.88 and 28,751.54

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Solution

The fourth proportional to 87,916.10, 131,894.88 and 28,751.54 is: 43,134.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,916.10 : 131,894.88 = 28,751.54 : x
  2. Step 2: Convert to fraction form
    87,916.10/131,894.88 = 28,751.54/x
  3. Step 3: Cross multiply
    87,916.10x = 131,894.88 × 28,751.54
  4. Step 4: Simplify right side
    87,916.10x = 3,792,180,918.12
  5. Step 5: Solve for x
    x = 3,792,180,918.12/87,916.10
  6. Step 6: Final answer
    x = 43,134.09

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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.