Home / 68,579.91-94,659.30-39,905.10

Finding the Fourth Proportional to 68,579.91, 94,659.30 and 39,905.10

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Solution

The fourth proportional to 68,579.91, 94,659.30 and 39,905.10 is: 55,080.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,579.91 : 94,659.30 = 39,905.10 : x
  2. Step 2: Convert to fraction form
    68,579.91/94,659.30 = 39,905.10/x
  3. Step 3: Cross multiply
    68,579.91x = 94,659.30 × 39,905.10
  4. Step 4: Simplify right side
    68,579.91x = 3,777,388,832.43
  5. Step 5: Solve for x
    x = 3,777,388,832.43/68,579.91
  6. Step 6: Final answer
    x = 55,080.11

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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.