Home / 87,830.82-131,767.22-28,666.60

Finding the Fourth Proportional to 87,830.82, 131,767.22 and 28,666.60

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Solution

The fourth proportional to 87,830.82, 131,767.22 and 28,666.60 is: 43,006.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,830.82 : 131,767.22 = 28,666.60 : x
  2. Step 2: Convert to fraction form
    87,830.82/131,767.22 = 28,666.60/x
  3. Step 3: Cross multiply
    87,830.82x = 131,767.22 × 28,666.60
  4. Step 4: Simplify right side
    87,830.82x = 3,777,317,931.10
  5. Step 5: Solve for x
    x = 3,777,317,931.10/87,830.82
  6. Step 6: Final answer
    x = 43,006.75

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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.