Home / 90,605.68-135,769.92-37,986.46

Finding the Fourth Proportional to 90,605.68, 135,769.92 and 37,986.46

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Solution

The fourth proportional to 90,605.68, 135,769.92 and 37,986.46 is: 56,921.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,605.68 : 135,769.92 = 37,986.46 : x
  2. Step 2: Convert to fraction form
    90,605.68/135,769.92 = 37,986.46/x
  3. Step 3: Cross multiply
    90,605.68x = 135,769.92 × 37,986.46
  4. Step 4: Simplify right side
    90,605.68x = 5,157,418,635.28
  5. Step 5: Solve for x
    x = 5,157,418,635.28/90,605.68
  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.