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Finding the Fourth Proportional to 90,374.56, 124,687.02 and 54,550.96

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Solution

The fourth proportional to 90,374.56, 124,687.02 and 54,550.96 is: 75,262.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,374.56 : 124,687.02 = 54,550.96 : x
  2. Step 2: Convert to fraction form
    90,374.56/124,687.02 = 54,550.96/x
  3. Step 3: Cross multiply
    90,374.56x = 124,687.02 × 54,550.96
  4. Step 4: Simplify right side
    90,374.56x = 6,801,796,640.54
  5. Step 5: Solve for x
    x = 6,801,796,640.54/90,374.56
  6. Step 6: Final answer
    x = 75,262.29

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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.