Home / 86,787.45-130,179.96-34,197.39

Finding the Fourth Proportional to 86,787.45, 130,179.96 and 34,197.39

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Solution

The fourth proportional to 86,787.45, 130,179.96 and 34,197.39 is: 51,295.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,787.45 : 130,179.96 = 34,197.39 : x
  2. Step 2: Convert to fraction form
    86,787.45/130,179.96 = 34,197.39/x
  3. Step 3: Cross multiply
    86,787.45x = 130,179.96 × 34,197.39
  4. Step 4: Simplify right side
    86,787.45x = 4,451,814,862.30
  5. Step 5: Solve for x
    x = 4,451,814,862.30/86,787.45
  6. Step 6: Final answer
    x = 51,295.61

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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.