Home / 91,942.40-137,910.85-25,386.59

Finding the Fourth Proportional to 91,942.40, 137,910.85 and 25,386.59

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Solution

The fourth proportional to 91,942.40, 137,910.85 and 25,386.59 is: 38,079.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,942.40 : 137,910.85 = 25,386.59 : x
  2. Step 2: Convert to fraction form
    91,942.40/137,910.85 = 25,386.59/x
  3. Step 3: Cross multiply
    91,942.40x = 137,910.85 × 25,386.59
  4. Step 4: Simplify right side
    91,942.40x = 3,501,086,205.50
  5. Step 5: Solve for x
    x = 3,501,086,205.50/91,942.40
  6. Step 6: Final answer
    x = 38,079.13

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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.