Home / 90,203.13-135,231.78-37,651.95

Finding the Fourth Proportional to 90,203.13, 135,231.78 and 37,651.95

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Solution

The fourth proportional to 90,203.13, 135,231.78 and 37,651.95 is: 56,447.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,203.13 : 135,231.78 = 37,651.95 : x
  2. Step 2: Convert to fraction form
    90,203.13/135,231.78 = 37,651.95/x
  3. Step 3: Cross multiply
    90,203.13x = 135,231.78 × 37,651.95
  4. Step 4: Simplify right side
    90,203.13x = 5,091,740,218.97
  5. Step 5: Solve for x
    x = 5,091,740,218.97/90,203.13
  6. Step 6: Final answer
    x = 56,447.49

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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.