Home / 87,489.42-131,292.04-48,074

Finding the Fourth Proportional to 87,489.42, 131,292.04 and 48,074

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Solution

The fourth proportional to 87,489.42, 131,292.04 and 48,074 is: 72,142.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,489.42 : 131,292.04 = 48,074 : x
  2. Step 2: Convert to fraction form
    87,489.42/131,292.04 = 48,074/x
  3. Step 3: Cross multiply
    87,489.42x = 131,292.04 × 48,074
  4. Step 4: Simplify right side
    87,489.42x = 6,311,733,530.96
  5. Step 5: Solve for x
    x = 6,311,733,530.96/87,489.42
  6. Step 6: Final answer
    x = 72,142.82

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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.