Home / 90,458.66-135,579-33,487.04

Finding the Fourth Proportional to 90,458.66, 135,579 and 33,487.04

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Solution

The fourth proportional to 90,458.66, 135,579 and 33,487.04 is: 50,190.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,458.66 : 135,579 = 33,487.04 : x
  2. Step 2: Convert to fraction form
    90,458.66/135,579 = 33,487.04/x
  3. Step 3: Cross multiply
    90,458.66x = 135,579 × 33,487.04
  4. Step 4: Simplify right side
    90,458.66x = 4,540,139,396.16
  5. Step 5: Solve for x
    x = 4,540,139,396.16/90,458.66
  6. Step 6: Final answer
    x = 50,190.21

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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.