Home / 57,936.20-86,917.32-31,281.59

Finding the Fourth Proportional to 57,936.20, 86,917.32 and 31,281.59

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Solution

The fourth proportional to 57,936.20, 86,917.32 and 31,281.59 is: 46,929.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,936.20 : 86,917.32 = 31,281.59 : x
  2. Step 2: Convert to fraction form
    57,936.20/86,917.32 = 31,281.59/x
  3. Step 3: Cross multiply
    57,936.20x = 86,917.32 × 31,281.59
  4. Step 4: Simplify right side
    57,936.20x = 2,718,912,185.43
  5. Step 5: Solve for x
    x = 2,718,912,185.43/57,936.20
  6. Step 6: Final answer
    x = 46,929.42

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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.