Home / 68,091.48-102,153.62-21,344.36

Finding the Fourth Proportional to 68,091.48, 102,153.62 and 21,344.36

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Solution

The fourth proportional to 68,091.48, 102,153.62 and 21,344.36 is: 32,021.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,091.48 : 102,153.62 = 21,344.36 : x
  2. Step 2: Convert to fraction form
    68,091.48/102,153.62 = 21,344.36/x
  3. Step 3: Cross multiply
    68,091.48x = 102,153.62 × 21,344.36
  4. Step 4: Simplify right side
    68,091.48x = 2,180,403,023.09
  5. Step 5: Solve for x
    x = 2,180,403,023.09/68,091.48
  6. Step 6: Final answer
    x = 32,021.67

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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.