Home / 87,914.12-131,778.21-28,733.90

Finding the Fourth Proportional to 87,914.12, 131,778.21 and 28,733.90

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Solution

The fourth proportional to 87,914.12, 131,778.21 and 28,733.90 is: 43,070.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,914.12 : 131,778.21 = 28,733.90 : x
  2. Step 2: Convert to fraction form
    87,914.12/131,778.21 = 28,733.90/x
  3. Step 3: Cross multiply
    87,914.12x = 131,778.21 × 28,733.90
  4. Step 4: Simplify right side
    87,914.12x = 3,786,501,908.32
  5. Step 5: Solve for x
    x = 3,786,501,908.32/87,914.12
  6. Step 6: Final answer
    x = 43,070.46

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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.