Home / 49,377.40-74,107.58-21,318.66

Finding the Fourth Proportional to 49,377.40, 74,107.58 and 21,318.66

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Solution

The fourth proportional to 49,377.40, 74,107.58 and 21,318.66 is: 31,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,377.40 : 74,107.58 = 21,318.66 : x
  2. Step 2: Convert to fraction form
    49,377.40/74,107.58 = 21,318.66/x
  3. Step 3: Cross multiply
    49,377.40x = 74,107.58 × 21,318.66
  4. Step 4: Simplify right side
    49,377.40x = 1,579,874,194.85
  5. Step 5: Solve for x
    x = 1,579,874,194.85/49,377.40
  6. Step 6: Final answer
    x = 31,995.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.