Home / 89,823.89-123,959.84-51,591.21

Finding the Fourth Proportional to 89,823.89, 123,959.84 and 51,591.21

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Solution

The fourth proportional to 89,823.89, 123,959.84 and 51,591.21 is: 71,197.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,823.89 : 123,959.84 = 51,591.21 : x
  2. Step 2: Convert to fraction form
    89,823.89/123,959.84 = 51,591.21/x
  3. Step 3: Cross multiply
    89,823.89x = 123,959.84 × 51,591.21
  4. Step 4: Simplify right side
    89,823.89x = 6,395,237,879.05
  5. Step 5: Solve for x
    x = 6,395,237,879.05/89,823.89
  6. Step 6: Final answer
    x = 71,197.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.