Home / 89,701.77-123,787.85-49,414.62

Finding the Fourth Proportional to 89,701.77, 123,787.85 and 49,414.62

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Solution

The fourth proportional to 89,701.77, 123,787.85 and 49,414.62 is: 68,191.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,701.77 : 123,787.85 = 49,414.62 : x
  2. Step 2: Convert to fraction form
    89,701.77/123,787.85 = 49,414.62/x
  3. Step 3: Cross multiply
    89,701.77x = 123,787.85 × 49,414.62
  4. Step 4: Simplify right side
    89,701.77x = 6,116,929,321.29
  5. Step 5: Solve for x
    x = 6,116,929,321.29/89,701.77
  6. Step 6: Final answer
    x = 68,191.85

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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.