Home / 68,629.32-102,942.90-21,881.88

Finding the Fourth Proportional to 68,629.32, 102,942.90 and 21,881.88

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Solution

The fourth proportional to 68,629.32, 102,942.90 and 21,881.88 is: 32,822.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,629.32 : 102,942.90 = 21,881.88 : x
  2. Step 2: Convert to fraction form
    68,629.32/102,942.90 = 21,881.88/x
  3. Step 3: Cross multiply
    68,629.32x = 102,942.90 × 21,881.88
  4. Step 4: Simplify right side
    68,629.32x = 2,252,584,184.65
  5. Step 5: Solve for x
    x = 2,252,584,184.65/68,629.32
  6. Step 6: Final answer
    x = 32,822.48

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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.