Home / 90,450.57-135,682.34-23,890.04

Finding the Fourth Proportional to 90,450.57, 135,682.34 and 23,890.04

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Solution

The fourth proportional to 90,450.57, 135,682.34 and 23,890.04 is: 35,836.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,450.57 : 135,682.34 = 23,890.04 : x
  2. Step 2: Convert to fraction form
    90,450.57/135,682.34 = 23,890.04/x
  3. Step 3: Cross multiply
    90,450.57x = 135,682.34 × 23,890.04
  4. Step 4: Simplify right side
    90,450.57x = 3,241,456,375.22
  5. Step 5: Solve for x
    x = 3,241,456,375.22/90,450.57
  6. Step 6: Final answer
    x = 35,836.77

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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.