Home / 68,351.01-102,541.56-20,972.64

Finding the Fourth Proportional to 68,351.01, 102,541.56 and 20,972.64

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Solution

The fourth proportional to 68,351.01, 102,541.56 and 20,972.64 is: 31,463.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,351.01 : 102,541.56 = 20,972.64 : x
  2. Step 2: Convert to fraction form
    68,351.01/102,541.56 = 20,972.64/x
  3. Step 3: Cross multiply
    68,351.01x = 102,541.56 × 20,972.64
  4. Step 4: Simplify right side
    68,351.01x = 2,150,567,222.92
  5. Step 5: Solve for x
    x = 2,150,567,222.92/68,351.01
  6. Step 6: Final answer
    x = 31,463.58

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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.