Home / 87,407.40-131,149.62-45,844.68

Finding the Fourth Proportional to 87,407.40, 131,149.62 and 45,844.68

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Solution

The fourth proportional to 87,407.40, 131,149.62 and 45,844.68 is: 68,787.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,407.40 : 131,149.62 = 45,844.68 : x
  2. Step 2: Convert to fraction form
    87,407.40/131,149.62 = 45,844.68/x
  3. Step 3: Cross multiply
    87,407.40x = 131,149.62 × 45,844.68
  4. Step 4: Simplify right side
    87,407.40x = 6,012,512,361.02
  5. Step 5: Solve for x
    x = 6,012,512,361.02/87,407.40
  6. Step 6: Final answer
    x = 68,787.22

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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.