Home / 89,660.25-123,731.15-49,916.25

Finding the Fourth Proportional to 89,660.25, 123,731.15 and 49,916.25

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Solution

The fourth proportional to 89,660.25, 123,731.15 and 49,916.25 is: 68,884.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,660.25 : 123,731.15 = 49,916.25 : x
  2. Step 2: Convert to fraction form
    89,660.25/123,731.15 = 49,916.25/x
  3. Step 3: Cross multiply
    89,660.25x = 123,731.15 × 49,916.25
  4. Step 4: Simplify right side
    89,660.25x = 6,176,194,766.61
  5. Step 5: Solve for x
    x = 6,176,194,766.61/89,660.25
  6. Step 6: Final answer
    x = 68,884.43

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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.