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Finding the Fourth Proportional to 90,293.94, 135,528.39 and 43,579.62

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Solution

The fourth proportional to 90,293.94, 135,528.39 and 43,579.62 is: 65,411.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,293.94 : 135,528.39 = 43,579.62 : x
  2. Step 2: Convert to fraction form
    90,293.94/135,528.39 = 43,579.62/x
  3. Step 3: Cross multiply
    90,293.94x = 135,528.39 × 43,579.62
  4. Step 4: Simplify right side
    90,293.94x = 5,906,275,735.41
  5. Step 5: Solve for x
    x = 5,906,275,735.41/90,293.94
  6. Step 6: Final answer
    x = 65,411.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.