Home / 87,382.56-131,040.44-31,212.12

Finding the Fourth Proportional to 87,382.56, 131,040.44 and 31,212.12

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Solution

The fourth proportional to 87,382.56, 131,040.44 and 31,212.12 is: 46,806.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,382.56 : 131,040.44 = 31,212.12 : x
  2. Step 2: Convert to fraction form
    87,382.56/131,040.44 = 31,212.12/x
  3. Step 3: Cross multiply
    87,382.56x = 131,040.44 × 31,212.12
  4. Step 4: Simplify right side
    87,382.56x = 4,090,049,938.13
  5. Step 5: Solve for x
    x = 4,090,049,938.13/87,382.56
  6. Step 6: Final answer
    x = 46,806.25

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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.