Home / 90,605.64-135,769.92-37,986.44

Finding the Fourth Proportional to 90,605.64, 135,769.92 and 37,986.44

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Solution

The fourth proportional to 90,605.64, 135,769.92 and 37,986.44 is: 56,921.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,605.64 : 135,769.92 = 37,986.44 : x
  2. Step 2: Convert to fraction form
    90,605.64/135,769.92 = 37,986.44/x
  3. Step 3: Cross multiply
    90,605.64x = 135,769.92 × 37,986.44
  4. Step 4: Simplify right side
    90,605.64x = 5,157,415,919.88
  5. Step 5: Solve for x
    x = 5,157,415,919.88/90,605.64
  6. Step 6: Final answer
    x = 56,921.58

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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.