Home / 68,704.04-94,803.90-40,029.78

Finding the Fourth Proportional to 68,704.04, 94,803.90 and 40,029.78

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Solution

The fourth proportional to 68,704.04, 94,803.90 and 40,029.78 is: 55,236.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,704.04 : 94,803.90 = 40,029.78 : x
  2. Step 2: Convert to fraction form
    68,704.04/94,803.90 = 40,029.78/x
  3. Step 3: Cross multiply
    68,704.04x = 94,803.90 × 40,029.78
  4. Step 4: Simplify right side
    68,704.04x = 3,794,979,260.14
  5. Step 5: Solve for x
    x = 3,794,979,260.14/68,704.04
  6. Step 6: Final answer
    x = 55,236.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.