Home / 90,104.43-135,191.21-34,704.75

Finding the Fourth Proportional to 90,104.43, 135,191.21 and 34,704.75

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Solution

The fourth proportional to 90,104.43, 135,191.21 and 34,704.75 is: 52,070.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,104.43 : 135,191.21 = 34,704.75 : x
  2. Step 2: Convert to fraction form
    90,104.43/135,191.21 = 34,704.75/x
  3. Step 3: Cross multiply
    90,104.43x = 135,191.21 × 34,704.75
  4. Step 4: Simplify right side
    90,104.43x = 4,691,776,971.72
  5. Step 5: Solve for x
    x = 4,691,776,971.72/90,104.43
  6. Step 6: Final answer
    x = 52,070.44

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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.