Home / 49,421.87-68,174.32-31,266.96

Finding the Fourth Proportional to 49,421.87, 68,174.32 and 31,266.96

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Solution

The fourth proportional to 49,421.87, 68,174.32 and 31,266.96 is: 43,130.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,421.87 : 68,174.32 = 31,266.96 : x
  2. Step 2: Convert to fraction form
    49,421.87/68,174.32 = 31,266.96/x
  3. Step 3: Cross multiply
    49,421.87x = 68,174.32 × 31,266.96
  4. Step 4: Simplify right side
    49,421.87x = 2,131,603,736.47
  5. Step 5: Solve for x
    x = 2,131,603,736.47/49,421.87
  6. Step 6: Final answer
    x = 43,130.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.