Home / 91,974.33-137,887.09-28,761.93

Finding the Fourth Proportional to 91,974.33, 137,887.09 and 28,761.93

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Solution

The fourth proportional to 91,974.33, 137,887.09 and 28,761.93 is: 43,119.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,974.33 : 137,887.09 = 28,761.93 : x
  2. Step 2: Convert to fraction form
    91,974.33/137,887.09 = 28,761.93/x
  3. Step 3: Cross multiply
    91,974.33x = 137,887.09 × 28,761.93
  4. Step 4: Simplify right side
    91,974.33x = 3,965,898,758.58
  5. Step 5: Solve for x
    x = 3,965,898,758.58/91,974.33
  6. Step 6: Final answer
    x = 43,119.63

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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.