Home / 87,847.52-131,784-28,670.88

Finding the Fourth Proportional to 87,847.52, 131,784 and 28,670.88

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Solution

The fourth proportional to 87,847.52, 131,784 and 28,670.88 is: 43,010.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,847.52 : 131,784 = 28,670.88 : x
  2. Step 2: Convert to fraction form
    87,847.52/131,784 = 28,670.88/x
  3. Step 3: Cross multiply
    87,847.52x = 131,784 × 28,670.88
  4. Step 4: Simplify right side
    87,847.52x = 3,778,363,249.92
  5. Step 5: Solve for x
    x = 3,778,363,249.92/87,847.52
  6. Step 6: Final answer
    x = 43,010.47

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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.