Home / 90,519.89-135,664.92-40,597.97

Finding the Fourth Proportional to 90,519.89, 135,664.92 and 40,597.97

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Solution

The fourth proportional to 90,519.89, 135,664.92 and 40,597.97 is: 60,845.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,519.89 : 135,664.92 = 40,597.97 : x
  2. Step 2: Convert to fraction form
    90,519.89/135,664.92 = 40,597.97/x
  3. Step 3: Cross multiply
    90,519.89x = 135,664.92 × 40,597.97
  4. Step 4: Simplify right side
    90,519.89x = 5,507,719,673.89
  5. Step 5: Solve for x
    x = 5,507,719,673.89/90,519.89
  6. Step 6: Final answer
    x = 60,845.41

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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.