Home / 89,766.57-123,872.22-49,478.11

Finding the Fourth Proportional to 89,766.57, 123,872.22 and 49,478.11

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Solution

The fourth proportional to 89,766.57, 123,872.22 and 49,478.11 is: 68,276.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,766.57 : 123,872.22 = 49,478.11 : x
  2. Step 2: Convert to fraction form
    89,766.57/123,872.22 = 49,478.11/x
  3. Step 3: Cross multiply
    89,766.57x = 123,872.22 × 49,478.11
  4. Step 4: Simplify right side
    89,766.57x = 6,128,963,327.10
  5. Step 5: Solve for x
    x = 6,128,963,327.10/89,766.57
  6. Step 6: Final answer
    x = 68,276.68

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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.