Home / 87,408.64-120,622.71-49,165.30

Finding the Fourth Proportional to 87,408.64, 120,622.71 and 49,165.30

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Solution

The fourth proportional to 87,408.64, 120,622.71 and 49,165.30 is: 67,847.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,408.64 : 120,622.71 = 49,165.30 : x
  2. Step 2: Convert to fraction form
    87,408.64/120,622.71 = 49,165.30/x
  3. Step 3: Cross multiply
    87,408.64x = 120,622.71 × 49,165.30
  4. Step 4: Simplify right side
    87,408.64x = 5,930,451,723.96
  5. Step 5: Solve for x
    x = 5,930,451,723.96/87,408.64
  6. Step 6: Final answer
    x = 67,847.43

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1.5x scale

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.