Home / 87,947.32-131,782.62-68,005.52

Finding the Fourth Proportional to 87,947.32, 131,782.62 and 68,005.52

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Solution

The fourth proportional to 87,947.32, 131,782.62 and 68,005.52 is: 101,901.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,947.32 : 131,782.62 = 68,005.52 : x
  2. Step 2: Convert to fraction form
    87,947.32/131,782.62 = 68,005.52/x
  3. Step 3: Cross multiply
    87,947.32x = 131,782.62 × 68,005.52
  4. Step 4: Simplify right side
    87,947.32x = 8,961,945,600.06
  5. Step 5: Solve for x
    x = 8,961,945,600.06/87,947.32
  6. Step 6: Final answer
    x = 101,901.29

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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.