Home / 89,730.15-123,833.13-49,443.90

Finding the Fourth Proportional to 89,730.15, 123,833.13 and 49,443.90

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Solution

The fourth proportional to 89,730.15, 123,833.13 and 49,443.90 is: 68,235.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,730.15 : 123,833.13 = 49,443.90 : x
  2. Step 2: Convert to fraction form
    89,730.15/123,833.13 = 49,443.90/x
  3. Step 3: Cross multiply
    89,730.15x = 123,833.13 × 49,443.90
  4. Step 4: Simplify right side
    89,730.15x = 6,122,792,896.41
  5. Step 5: Solve for x
    x = 6,122,792,896.41/89,730.15
  6. Step 6: Final answer
    x = 68,235.63

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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.