Home / 68,443.03-102,668.19-21,699.55

Finding the Fourth Proportional to 68,443.03, 102,668.19 and 21,699.55

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Solution

The fourth proportional to 68,443.03, 102,668.19 and 21,699.55 is: 32,550.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,443.03 : 102,668.19 = 21,699.55 : x
  2. Step 2: Convert to fraction form
    68,443.03/102,668.19 = 21,699.55/x
  3. Step 3: Cross multiply
    68,443.03x = 102,668.19 × 21,699.55
  4. Step 4: Simplify right side
    68,443.03x = 2,227,853,522.31
  5. Step 5: Solve for x
    x = 2,227,853,522.31/68,443.03
  6. Step 6: Final answer
    x = 32,550.48

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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.