Home / 49,732.64-68,639.38-31,826.78

Finding the Fourth Proportional to 49,732.64, 68,639.38 and 31,826.78

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Solution

The fourth proportional to 49,732.64, 68,639.38 and 31,826.78 is: 43,926.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,732.64 : 68,639.38 = 31,826.78 : x
  2. Step 2: Convert to fraction form
    49,732.64/68,639.38 = 31,826.78/x
  3. Step 3: Cross multiply
    49,732.64x = 68,639.38 × 31,826.78
  4. Step 4: Simplify right side
    49,732.64x = 2,184,570,446.60
  5. Step 5: Solve for x
    x = 2,184,570,446.60/49,732.64
  6. Step 6: Final answer
    x = 43,926.29

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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.