Home / 90,269.26-135,425.52-27,939.76

Finding the Fourth Proportional to 90,269.26, 135,425.52 and 27,939.76

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Solution

The fourth proportional to 90,269.26, 135,425.52 and 27,939.76 is: 41,916.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,269.26 : 135,425.52 = 27,939.76 : x
  2. Step 2: Convert to fraction form
    90,269.26/135,425.52 = 27,939.76/x
  3. Step 3: Cross multiply
    90,269.26x = 135,425.52 × 27,939.76
  4. Step 4: Simplify right side
    90,269.26x = 3,783,756,526.68
  5. Step 5: Solve for x
    x = 3,783,756,526.68/90,269.26
  6. Step 6: Final answer
    x = 41,916.33

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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.