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Finding the Fourth Proportional to 90,773.84, 125,268 and 50,486.64

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Solution

The fourth proportional to 90,773.84, 125,268 and 50,486.64 is: 69,671.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,773.84 : 125,268 = 50,486.64 : x
  2. Step 2: Convert to fraction form
    90,773.84/125,268 = 50,486.64/x
  3. Step 3: Cross multiply
    90,773.84x = 125,268 × 50,486.64
  4. Step 4: Simplify right side
    90,773.84x = 6,324,360,419.52
  5. Step 5: Solve for x
    x = 6,324,360,419.52/90,773.84
  6. Step 6: Final answer
    x = 69,671.62

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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.