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Finding the Fourth Proportional to 90,408.44, 124,771 and 50,134.82

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Solution

The fourth proportional to 90,408.44, 124,771 and 50,134.82 is: 69,190.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,408.44 : 124,771 = 50,134.82 : x
  2. Step 2: Convert to fraction form
    90,408.44/124,771 = 50,134.82/x
  3. Step 3: Cross multiply
    90,408.44x = 124,771 × 50,134.82
  4. Step 4: Simplify right side
    90,408.44x = 6,255,371,626.22
  5. Step 5: Solve for x
    x = 6,255,371,626.22/90,408.44
  6. Step 6: Final answer
    x = 69,190.13

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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.