Home / 68,668.08-102,911.40-31,233.12

Finding the Fourth Proportional to 68,668.08, 102,911.40 and 31,233.12

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Solution

The fourth proportional to 68,668.08, 102,911.40 and 31,233.12 is: 46,808.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,668.08 : 102,911.40 = 31,233.12 : x
  2. Step 2: Convert to fraction form
    68,668.08/102,911.40 = 31,233.12/x
  3. Step 3: Cross multiply
    68,668.08x = 102,911.40 × 31,233.12
  4. Step 4: Simplify right side
    68,668.08x = 3,214,244,105.57
  5. Step 5: Solve for x
    x = 3,214,244,105.57/68,668.08
  6. Step 6: Final answer
    x = 46,808.42

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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.