Home / 90,627.58-135,944.16-43,247.80

Finding the Fourth Proportional to 90,627.58, 135,944.16 and 43,247.80

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Solution

The fourth proportional to 90,627.58, 135,944.16 and 43,247.80 is: 64,873.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,627.58 : 135,944.16 = 43,247.80 : x
  2. Step 2: Convert to fraction form
    90,627.58/135,944.16 = 43,247.80/x
  3. Step 3: Cross multiply
    90,627.58x = 135,944.16 × 43,247.80
  4. Step 4: Simplify right side
    90,627.58x = 5,879,285,842.85
  5. Step 5: Solve for x
    x = 5,879,285,842.85/90,627.58
  6. Step 6: Final answer
    x = 64,873.03

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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.