Home / 87,648.32-131,410.92-30,708.30

Finding the Fourth Proportional to 87,648.32, 131,410.92 and 30,708.30

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Solution

The fourth proportional to 87,648.32, 131,410.92 and 30,708.30 is: 46,040.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,648.32 : 131,410.92 = 30,708.30 : x
  2. Step 2: Convert to fraction form
    87,648.32/131,410.92 = 30,708.30/x
  3. Step 3: Cross multiply
    87,648.32x = 131,410.92 × 30,708.30
  4. Step 4: Simplify right side
    87,648.32x = 4,035,405,954.64
  5. Step 5: Solve for x
    x = 4,035,405,954.64/87,648.32
  6. Step 6: Final answer
    x = 46,040.88

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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.