Home / 81,217.24-112,110.78-52,929.88

Finding the Fourth Proportional to 81,217.24, 112,110.78 and 52,929.88

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Solution

The fourth proportional to 81,217.24, 112,110.78 and 52,929.88 is: 73,063.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,217.24 : 112,110.78 = 52,929.88 : x
  2. Step 2: Convert to fraction form
    81,217.24/112,110.78 = 52,929.88/x
  3. Step 3: Cross multiply
    81,217.24x = 112,110.78 × 52,929.88
  4. Step 4: Simplify right side
    81,217.24x = 5,934,010,132.11
  5. Step 5: Solve for x
    x = 5,934,010,132.11/81,217.24
  6. Step 6: Final answer
    x = 73,063.43

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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.