Home / 90,123.63-135,187.26-27,794.13

Finding the Fourth Proportional to 90,123.63, 135,187.26 and 27,794.13

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Solution

The fourth proportional to 90,123.63, 135,187.26 and 27,794.13 is: 41,691.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,123.63 : 135,187.26 = 27,794.13 : x
  2. Step 2: Convert to fraction form
    90,123.63/135,187.26 = 27,794.13/x
  3. Step 3: Cross multiply
    90,123.63x = 135,187.26 × 27,794.13
  4. Step 4: Simplify right side
    90,123.63x = 3,757,412,278.78
  5. Step 5: Solve for x
    x = 3,757,412,278.78/90,123.63
  6. Step 6: Final answer
    x = 41,691.75

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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.