Home / 87,664.28-131,529.54-52,628.36

Finding the Fourth Proportional to 87,664.28, 131,529.54 and 52,628.36

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Solution

The fourth proportional to 87,664.28, 131,529.54 and 52,628.36 is: 78,962.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,664.28 : 131,529.54 = 52,628.36 : x
  2. Step 2: Convert to fraction form
    87,664.28/131,529.54 = 52,628.36/x
  3. Step 3: Cross multiply
    87,664.28x = 131,529.54 × 52,628.36
  4. Step 4: Simplify right side
    87,664.28x = 6,922,183,981.75
  5. Step 5: Solve for x
    x = 6,922,183,981.75/87,664.28
  6. Step 6: Final answer
    x = 78,962.42

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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.