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Finding the Fourth Proportional to 90,120.98, 124,361.96 and 49,832.34

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Solution

The fourth proportional to 90,120.98, 124,361.96 and 49,832.34 is: 68,765.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,120.98 : 124,361.96 = 49,832.34 : x
  2. Step 2: Convert to fraction form
    90,120.98/124,361.96 = 49,832.34/x
  3. Step 3: Cross multiply
    90,120.98x = 124,361.96 × 49,832.34
  4. Step 4: Simplify right side
    90,120.98x = 6,197,247,224.62
  5. Step 5: Solve for x
    x = 6,197,247,224.62/90,120.98
  6. Step 6: Final answer
    x = 68,765.87

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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.