Home / 49,869.84-68,845.32-31,013.04

Finding the Fourth Proportional to 49,869.84, 68,845.32 and 31,013.04

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Solution

The fourth proportional to 49,869.84, 68,845.32 and 31,013.04 is: 42,813.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,869.84 : 68,845.32 = 31,013.04 : x
  2. Step 2: Convert to fraction form
    49,869.84/68,845.32 = 31,013.04/x
  3. Step 3: Cross multiply
    49,869.84x = 68,845.32 × 31,013.04
  4. Step 4: Simplify right side
    49,869.84x = 2,135,102,662.97
  5. Step 5: Solve for x
    x = 2,135,102,662.97/49,869.84
  6. Step 6: Final answer
    x = 42,813.51

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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.