Home / 57,208.82-78,948.97-31,369.80

Finding the Fourth Proportional to 57,208.82, 78,948.97 and 31,369.80

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Solution

The fourth proportional to 57,208.82, 78,948.97 and 31,369.80 is: 43,290.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,208.82 : 78,948.97 = 31,369.80 : x
  2. Step 2: Convert to fraction form
    57,208.82/78,948.97 = 31,369.80/x
  3. Step 3: Cross multiply
    57,208.82x = 78,948.97 × 31,369.80
  4. Step 4: Simplify right side
    57,208.82x = 2,476,613,399.11
  5. Step 5: Solve for x
    x = 2,476,613,399.11/57,208.82
  6. Step 6: Final answer
    x = 43,290.76

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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.