Home / 87,768.18-131,627.14-28,609.02

Finding the Fourth Proportional to 87,768.18, 131,627.14 and 28,609.02

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Solution

The fourth proportional to 87,768.18, 131,627.14 and 28,609.02 is: 42,905.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,768.18 : 131,627.14 = 28,609.02 : x
  2. Step 2: Convert to fraction form
    87,768.18/131,627.14 = 28,609.02/x
  3. Step 3: Cross multiply
    87,768.18x = 131,627.14 × 28,609.02
  4. Step 4: Simplify right side
    87,768.18x = 3,765,723,409.28
  5. Step 5: Solve for x
    x = 3,765,723,409.28/87,768.18
  6. Step 6: Final answer
    x = 42,905.34

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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.