Home / 87,850.98-131,784.57-28,686.96

Finding the Fourth Proportional to 87,850.98, 131,784.57 and 28,686.96

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Solution

The fourth proportional to 87,850.98, 131,784.57 and 28,686.96 is: 43,033.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,850.98 : 131,784.57 = 28,686.96 : x
  2. Step 2: Convert to fraction form
    87,850.98/131,784.57 = 28,686.96/x
  3. Step 3: Cross multiply
    87,850.98x = 131,784.57 × 28,686.96
  4. Step 4: Simplify right side
    87,850.98x = 3,780,498,688.21
  5. Step 5: Solve for x
    x = 3,780,498,688.21/87,850.98
  6. Step 6: Final answer
    x = 43,033.08

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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.