Home / 68,009.22-102,016.53-21,262.50

Finding the Fourth Proportional to 68,009.22, 102,016.53 and 21,262.50

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Solution

The fourth proportional to 68,009.22, 102,016.53 and 21,262.50 is: 31,894.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,009.22 : 102,016.53 = 21,262.50 : x
  2. Step 2: Convert to fraction form
    68,009.22/102,016.53 = 21,262.50/x
  3. Step 3: Cross multiply
    68,009.22x = 102,016.53 × 21,262.50
  4. Step 4: Simplify right side
    68,009.22x = 2,169,126,469.13
  5. Step 5: Solve for x
    x = 2,169,126,469.13/68,009.22
  6. Step 6: Final answer
    x = 31,894.59

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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.