Home / 87,938.36-131,919.83-28,762.23

Finding the Fourth Proportional to 87,938.36, 131,919.83 and 28,762.23

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Solution

The fourth proportional to 87,938.36, 131,919.83 and 28,762.23 is: 43,147.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,938.36 : 131,919.83 = 28,762.23 : x
  2. Step 2: Convert to fraction form
    87,938.36/131,919.83 = 28,762.23/x
  3. Step 3: Cross multiply
    87,938.36x = 131,919.83 × 28,762.23
  4. Step 4: Simplify right side
    87,938.36x = 3,794,308,348.21
  5. Step 5: Solve for x
    x = 3,794,308,348.21/87,938.36
  6. Step 6: Final answer
    x = 43,147.37

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1.5x scale

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.