Home / 90,408.94-124,771.71-50,135.32

Finding the Fourth Proportional to 90,408.94, 124,771.71 and 50,135.32

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Solution

The fourth proportional to 90,408.94, 124,771.71 and 50,135.32 is: 69,190.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,408.94 : 124,771.71 = 50,135.32 : x
  2. Step 2: Convert to fraction form
    90,408.94/124,771.71 = 50,135.32/x
  3. Step 3: Cross multiply
    90,408.94x = 124,771.71 × 50,135.32
  4. Step 4: Simplify right side
    90,408.94x = 6,255,469,607.80
  5. Step 5: Solve for x
    x = 6,255,469,607.80/90,408.94
  6. Step 6: Final answer
    x = 69,190.83

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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.