Home / 90,258.92-135,388.64-31,093.84

Finding the Fourth Proportional to 90,258.92, 135,388.64 and 31,093.84

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Solution

The fourth proportional to 90,258.92, 135,388.64 and 31,093.84 is: 46,640.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,258.92 : 135,388.64 = 31,093.84 : x
  2. Step 2: Convert to fraction form
    90,258.92/135,388.64 = 31,093.84/x
  3. Step 3: Cross multiply
    90,258.92x = 135,388.64 × 31,093.84
  4. Step 4: Simplify right side
    90,258.92x = 4,209,752,709.98
  5. Step 5: Solve for x
    x = 4,209,752,709.98/90,258.92
  6. Step 6: Final answer
    x = 46,640.85

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1.5x scale

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.