Home / 61,286.21-91,929.55-40,505.09

Finding the Fourth Proportional to 61,286.21, 91,929.55 and 40,505.09

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Solution

The fourth proportional to 61,286.21, 91,929.55 and 40,505.09 is: 60,757.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,286.21 : 91,929.55 = 40,505.09 : x
  2. Step 2: Convert to fraction form
    61,286.21/91,929.55 = 40,505.09/x
  3. Step 3: Cross multiply
    61,286.21x = 91,929.55 × 40,505.09
  4. Step 4: Simplify right side
    61,286.21x = 3,723,614,696.41
  5. Step 5: Solve for x
    x = 3,723,614,696.41/61,286.21
  6. Step 6: Final answer
    x = 60,757.79

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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.