Home / 87,751.45-131,640.84-28,573.35

Finding the Fourth Proportional to 87,751.45, 131,640.84 and 28,573.35

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Solution

The fourth proportional to 87,751.45, 131,640.84 and 28,573.35 is: 42,864.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,751.45 : 131,640.84 = 28,573.35 : x
  2. Step 2: Convert to fraction form
    87,751.45/131,640.84 = 28,573.35/x
  3. Step 3: Cross multiply
    87,751.45x = 131,640.84 × 28,573.35
  4. Step 4: Simplify right side
    87,751.45x = 3,761,419,652.75
  5. Step 5: Solve for x
    x = 3,761,419,652.75/87,751.45
  6. Step 6: Final answer
    x = 42,864.48

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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.