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Finding the Fourth Proportional to 81,763.35, 112,834.44 and 49,497.54

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Solution

The fourth proportional to 81,763.35, 112,834.44 and 49,497.54 is: 68,307.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,763.35 : 112,834.44 = 49,497.54 : x
  2. Step 2: Convert to fraction form
    81,763.35/112,834.44 = 49,497.54/x
  3. Step 3: Cross multiply
    81,763.35x = 112,834.44 × 49,497.54
  4. Step 4: Simplify right side
    81,763.35x = 5,585,027,207.28
  5. Step 5: Solve for x
    x = 5,585,027,207.28/81,763.35
  6. Step 6: Final answer
    x = 68,307.22

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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.