Home / 87,574.68-131,380.46-28,405.72

Finding the Fourth Proportional to 87,574.68, 131,380.46 and 28,405.72

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Solution

The fourth proportional to 87,574.68, 131,380.46 and 28,405.72 is: 42,614.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,574.68 : 131,380.46 = 28,405.72 : x
  2. Step 2: Convert to fraction form
    87,574.68/131,380.46 = 28,405.72/x
  3. Step 3: Cross multiply
    87,574.68x = 131,380.46 × 28,405.72
  4. Step 4: Simplify right side
    87,574.68x = 3,731,956,560.23
  5. Step 5: Solve for x
    x = 3,731,956,560.23/87,574.68
  6. Step 6: Final answer
    x = 42,614.56

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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.