Home / 81,788.58-112,874.18-49,963.47

Finding the Fourth Proportional to 81,788.58, 112,874.18 and 49,963.47

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Solution

The fourth proportional to 81,788.58, 112,874.18 and 49,963.47 is: 68,953.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,788.58 : 112,874.18 = 49,963.47 : x
  2. Step 2: Convert to fraction form
    81,788.58/112,874.18 = 49,963.47/x
  3. Step 3: Cross multiply
    81,788.58x = 112,874.18 × 49,963.47
  4. Step 4: Simplify right side
    81,788.58x = 5,639,585,706.20
  5. Step 5: Solve for x
    x = 5,639,585,706.20/81,788.58
  6. Step 6: Final answer
    x = 68,953.22

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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.