Home / 87,698.03-131,560.77-28,519.83

Finding the Fourth Proportional to 87,698.03, 131,560.77 and 28,519.83

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Solution

The fourth proportional to 87,698.03, 131,560.77 and 28,519.83 is: 42,784.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,698.03 : 131,560.77 = 28,519.83 : x
  2. Step 2: Convert to fraction form
    87,698.03/131,560.77 = 28,519.83/x
  3. Step 3: Cross multiply
    87,698.03x = 131,560.77 × 28,519.83
  4. Step 4: Simplify right side
    87,698.03x = 3,752,090,902.02
  5. Step 5: Solve for x
    x = 3,752,090,902.02/87,698.03
  6. Step 6: Final answer
    x = 42,784.21

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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.