Home / 87,296.91-131,111.45-54,247.94

Finding the Fourth Proportional to 87,296.91, 131,111.45 and 54,247.94

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Solution

The fourth proportional to 87,296.91, 131,111.45 and 54,247.94 is: 81,475.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,296.91 : 131,111.45 = 54,247.94 : x
  2. Step 2: Convert to fraction form
    87,296.91/131,111.45 = 54,247.94/x
  3. Step 3: Cross multiply
    87,296.91x = 131,111.45 × 54,247.94
  4. Step 4: Simplify right side
    87,296.91x = 7,112,525,146.12
  5. Step 5: Solve for x
    x = 7,112,525,146.12/87,296.91
  6. Step 6: Final answer
    x = 81,475.11

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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.