Home / 49,981.56-68,974.62-28,760.40

Finding the Fourth Proportional to 49,981.56, 68,974.62 and 28,760.40

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Solution

The fourth proportional to 49,981.56, 68,974.62 and 28,760.40 is: 39,689.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,981.56 : 68,974.62 = 28,760.40 : x
  2. Step 2: Convert to fraction form
    49,981.56/68,974.62 = 28,760.40/x
  3. Step 3: Cross multiply
    49,981.56x = 68,974.62 × 28,760.40
  4. Step 4: Simplify right side
    49,981.56x = 1,983,737,661.05
  5. Step 5: Solve for x
    x = 1,983,737,661.05/49,981.56
  6. Step 6: Final answer
    x = 39,689.39

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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.