Home / 90,194.32-135,261.78-31,028.68

Finding the Fourth Proportional to 90,194.32, 135,261.78 and 31,028.68

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Solution

The fourth proportional to 90,194.32, 135,261.78 and 31,028.68 is: 46,532.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,194.32 : 135,261.78 = 31,028.68 : x
  2. Step 2: Convert to fraction form
    90,194.32/135,261.78 = 31,028.68/x
  3. Step 3: Cross multiply
    90,194.32x = 135,261.78 × 31,028.68
  4. Step 4: Simplify right side
    90,194.32x = 4,196,994,487.85
  5. Step 5: Solve for x
    x = 4,196,994,487.85/90,194.32
  6. Step 6: Final answer
    x = 46,532.80

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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.