Home / 87,830.80-131,701.38-28,628.44

Finding the Fourth Proportional to 87,830.80, 131,701.38 and 28,628.44

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Solution

The fourth proportional to 87,830.80, 131,701.38 and 28,628.44 is: 42,928.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,830.80 : 131,701.38 = 28,628.44 : x
  2. Step 2: Convert to fraction form
    87,830.80/131,701.38 = 28,628.44/x
  3. Step 3: Cross multiply
    87,830.80x = 131,701.38 × 28,628.44
  4. Step 4: Simplify right side
    87,830.80x = 3,770,405,055.25
  5. Step 5: Solve for x
    x = 3,770,405,055.25/87,830.80
  6. Step 6: Final answer
    x = 42,928.05

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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.