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Finding the Fourth Proportional to 89,730.66, 123,835.29 and 49,451.64

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Solution

The fourth proportional to 89,730.66, 123,835.29 and 49,451.64 is: 68,247.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,730.66 : 123,835.29 = 49,451.64 : x
  2. Step 2: Convert to fraction form
    89,730.66/123,835.29 = 49,451.64/x
  3. Step 3: Cross multiply
    89,730.66x = 123,835.29 × 49,451.64
  4. Step 4: Simplify right side
    89,730.66x = 6,123,858,180.38
  5. Step 5: Solve for x
    x = 6,123,858,180.38/89,730.66
  6. Step 6: Final answer
    x = 68,247.11

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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.