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Finding the Fourth Proportional to 90,863.92, 125,383.98 and 50,579.92

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Solution

The fourth proportional to 90,863.92, 125,383.98 and 50,579.92 is: 69,795.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,863.92 : 125,383.98 = 50,579.92 : x
  2. Step 2: Convert to fraction form
    90,863.92/125,383.98 = 50,579.92/x
  3. Step 3: Cross multiply
    90,863.92x = 125,383.98 × 50,579.92
  4. Step 4: Simplify right side
    90,863.92x = 6,341,911,677.68
  5. Step 5: Solve for x
    x = 6,341,911,677.68/90,863.92
  6. Step 6: Final answer
    x = 69,795.71

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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.