Home / 87,905.88-131,929.52-45,798.54

Finding the Fourth Proportional to 87,905.88, 131,929.52 and 45,798.54

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Solution

The fourth proportional to 87,905.88, 131,929.52 and 45,798.54 is: 68,734.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,905.88 : 131,929.52 = 45,798.54 : x
  2. Step 2: Convert to fraction form
    87,905.88/131,929.52 = 45,798.54/x
  3. Step 3: Cross multiply
    87,905.88x = 131,929.52 × 45,798.54
  4. Step 4: Simplify right side
    87,905.88x = 6,042,179,368.25
  5. Step 5: Solve for x
    x = 6,042,179,368.25/87,905.88
  6. Step 6: Final answer
    x = 68,734.64

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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.