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Finding the Fourth Proportional to 90,369.57, 135,563.37 and 33,458.67

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Solution

The fourth proportional to 90,369.57, 135,563.37 and 33,458.67 is: 50,191.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,369.57 : 135,563.37 = 33,458.67 : x
  2. Step 2: Convert to fraction form
    90,369.57/135,563.37 = 33,458.67/x
  3. Step 3: Cross multiply
    90,369.57x = 135,563.37 × 33,458.67
  4. Step 4: Simplify right side
    90,369.57x = 4,535,770,123.65
  5. Step 5: Solve for x
    x = 4,535,770,123.65/90,369.57
  6. Step 6: Final answer
    x = 50,191.34

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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.