Home / 90,470.24-135,662.20-40,550.76

Finding the Fourth Proportional to 90,470.24, 135,662.20 and 40,550.76

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Solution

The fourth proportional to 90,470.24, 135,662.20 and 40,550.76 is: 60,806.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,470.24 : 135,662.20 = 40,550.76 : x
  2. Step 2: Convert to fraction form
    90,470.24/135,662.20 = 40,550.76/x
  3. Step 3: Cross multiply
    90,470.24x = 135,662.20 × 40,550.76
  4. Step 4: Simplify right side
    90,470.24x = 5,501,205,313.27
  5. Step 5: Solve for x
    x = 5,501,205,313.27/90,470.24
  6. Step 6: Final answer
    x = 60,806.79

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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.