Home / 91,939.88-137,909.82-29,610.38

Finding the Fourth Proportional to 91,939.88, 137,909.82 and 29,610.38

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Solution

The fourth proportional to 91,939.88, 137,909.82 and 29,610.38 is: 44,415.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,939.88 : 137,909.82 = 29,610.38 : x
  2. Step 2: Convert to fraction form
    91,939.88/137,909.82 = 29,610.38/x
  3. Step 3: Cross multiply
    91,939.88x = 137,909.82 × 29,610.38
  4. Step 4: Simplify right side
    91,939.88x = 4,083,561,486.38
  5. Step 5: Solve for x
    x = 4,083,561,486.38/91,939.88
  6. Step 6: Final answer
    x = 44,415.56

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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.