Home / 90,398.18-135,597.50-27,218.48

Finding the Fourth Proportional to 90,398.18, 135,597.50 and 27,218.48

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Solution

The fourth proportional to 90,398.18, 135,597.50 and 27,218.48 is: 40,827.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,398.18 : 135,597.50 = 27,218.48 : x
  2. Step 2: Convert to fraction form
    90,398.18/135,597.50 = 27,218.48/x
  3. Step 3: Cross multiply
    90,398.18x = 135,597.50 × 27,218.48
  4. Step 4: Simplify right side
    90,398.18x = 3,690,757,027.72
  5. Step 5: Solve for x
    x = 3,690,757,027.72/90,398.18
  6. Step 6: Final answer
    x = 40,827.78

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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.