Home / 87,418.82-131,096.08-31,243.76

Finding the Fourth Proportional to 87,418.82, 131,096.08 and 31,243.76

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Solution

The fourth proportional to 87,418.82, 131,096.08 and 31,243.76 is: 46,854.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,418.82 : 131,096.08 = 31,243.76 : x
  2. Step 2: Convert to fraction form
    87,418.82/131,096.08 = 31,243.76/x
  3. Step 3: Cross multiply
    87,418.82x = 131,096.08 × 31,243.76
  4. Step 4: Simplify right side
    87,418.82x = 4,095,934,460.46
  5. Step 5: Solve for x
    x = 4,095,934,460.46/87,418.82
  6. Step 6: Final answer
    x = 46,854.15

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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.