Home / 87,783.08-131,688.24-28,604.96

Finding the Fourth Proportional to 87,783.08, 131,688.24 and 28,604.96

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Solution

The fourth proportional to 87,783.08, 131,688.24 and 28,604.96 is: 42,911.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,783.08 : 131,688.24 = 28,604.96 : x
  2. Step 2: Convert to fraction form
    87,783.08/131,688.24 = 28,604.96/x
  3. Step 3: Cross multiply
    87,783.08x = 131,688.24 × 28,604.96
  4. Step 4: Simplify right side
    87,783.08x = 3,766,936,837.67
  5. Step 5: Solve for x
    x = 3,766,936,837.67/87,783.08
  6. Step 6: Final answer
    x = 42,911.88

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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.