Home / 87,404.70-131,205.60-57,880.20

Finding the Fourth Proportional to 87,404.70, 131,205.60 and 57,880.20

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Solution

The fourth proportional to 87,404.70, 131,205.60 and 57,880.20 is: 86,885.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,404.70 : 131,205.60 = 57,880.20 : x
  2. Step 2: Convert to fraction form
    87,404.70/131,205.60 = 57,880.20/x
  3. Step 3: Cross multiply
    87,404.70x = 131,205.60 × 57,880.20
  4. Step 4: Simplify right side
    87,404.70x = 7,594,206,369.12
  5. Step 5: Solve for x
    x = 7,594,206,369.12/87,404.70
  6. Step 6: Final answer
    x = 86,885.56

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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.