Home / 87,765.96-131,662.62-28,587.84

Finding the Fourth Proportional to 87,765.96, 131,662.62 and 28,587.84

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Solution

The fourth proportional to 87,765.96, 131,662.62 and 28,587.84 is: 42,886.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,765.96 : 131,662.62 = 28,587.84 : x
  2. Step 2: Convert to fraction form
    87,765.96/131,662.62 = 28,587.84/x
  3. Step 3: Cross multiply
    87,765.96x = 131,662.62 × 28,587.84
  4. Step 4: Simplify right side
    87,765.96x = 3,763,949,914.54
  5. Step 5: Solve for x
    x = 3,763,949,914.54/87,765.96
  6. Step 6: Final answer
    x = 42,886.22

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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.