Home / 90,523.80-135,777.73-40,590.49

Finding the Fourth Proportional to 90,523.80, 135,777.73 and 40,590.49

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Solution

The fourth proportional to 90,523.80, 135,777.73 and 40,590.49 is: 60,882.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,523.80 : 135,777.73 = 40,590.49 : x
  2. Step 2: Convert to fraction form
    90,523.80/135,777.73 = 40,590.49/x
  3. Step 3: Cross multiply
    90,523.80x = 135,777.73 × 40,590.49
  4. Step 4: Simplify right side
    90,523.80x = 5,511,284,591.79
  5. Step 5: Solve for x
    x = 5,511,284,591.79/90,523.80
  6. Step 6: Final answer
    x = 60,882.16

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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.