Home / 68,029.08-102,043.83-20,644.56

Finding the Fourth Proportional to 68,029.08, 102,043.83 and 20,644.56

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Solution

The fourth proportional to 68,029.08, 102,043.83 and 20,644.56 is: 30,966.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,029.08 : 102,043.83 = 20,644.56 : x
  2. Step 2: Convert to fraction form
    68,029.08/102,043.83 = 20,644.56/x
  3. Step 3: Cross multiply
    68,029.08x = 102,043.83 × 20,644.56
  4. Step 4: Simplify right side
    68,029.08x = 2,106,649,971.06
  5. Step 5: Solve for x
    x = 2,106,649,971.06/68,029.08
  6. Step 6: Final answer
    x = 30,966.90

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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.