Home / 87,828.88-131,764.28-28,664.68

Finding the Fourth Proportional to 87,828.88, 131,764.28 and 28,664.68

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Solution

The fourth proportional to 87,828.88, 131,764.28 and 28,664.68 is: 43,003.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,828.88 : 131,764.28 = 28,664.68 : x
  2. Step 2: Convert to fraction form
    87,828.88/131,764.28 = 28,664.68/x
  3. Step 3: Cross multiply
    87,828.88x = 131,764.28 × 28,664.68
  4. Step 4: Simplify right side
    87,828.88x = 3,776,980,921.63
  5. Step 5: Solve for x
    x = 3,776,980,921.63/87,828.88
  6. Step 6: Final answer
    x = 43,003.86

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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.