Home / 91,609.24-137,489.22-39,078.04

Finding the Fourth Proportional to 91,609.24, 137,489.22 and 39,078.04

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Solution

The fourth proportional to 91,609.24, 137,489.22 and 39,078.04 is: 58,649.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,609.24 : 137,489.22 = 39,078.04 : x
  2. Step 2: Convert to fraction form
    91,609.24/137,489.22 = 39,078.04/x
  3. Step 3: Cross multiply
    91,609.24x = 137,489.22 × 39,078.04
  4. Step 4: Simplify right side
    91,609.24x = 5,372,809,238.73
  5. Step 5: Solve for x
    x = 5,372,809,238.73/91,609.24
  6. Step 6: Final answer
    x = 58,649.21

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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.