Home / 115,960.76-173,938.62-31,720.91

Finding the Fourth Proportional to 115,960.76, 173,938.62 and 31,720.91

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Solution

The fourth proportional to 115,960.76, 173,938.62 and 31,720.91 is: 47,580.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,960.76 : 173,938.62 = 31,720.91 : x
  2. Step 2: Convert to fraction form
    115,960.76/173,938.62 = 31,720.91/x
  3. Step 3: Cross multiply
    115,960.76x = 173,938.62 × 31,720.91
  4. Step 4: Simplify right side
    115,960.76x = 5,517,491,310.54
  5. Step 5: Solve for x
    x = 5,517,491,310.54/115,960.76
  6. Step 6: Final answer
    x = 47,580.68

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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.