Home / 87,311.92-120,476.28-49,066.96

Finding the Fourth Proportional to 87,311.92, 120,476.28 and 49,066.96

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Solution

The fourth proportional to 87,311.92, 120,476.28 and 49,066.96 is: 67,704.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,311.92 : 120,476.28 = 49,066.96 : x
  2. Step 2: Convert to fraction form
    87,311.92/120,476.28 = 49,066.96/x
  3. Step 3: Cross multiply
    87,311.92x = 120,476.28 × 49,066.96
  4. Step 4: Simplify right side
    87,311.92x = 5,911,404,811.71
  5. Step 5: Solve for x
    x = 5,911,404,811.71/87,311.92
  6. Step 6: Final answer
    x = 67,704.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.