Home / 68,179.10-102,274.41-21,445.34

Finding the Fourth Proportional to 68,179.10, 102,274.41 and 21,445.34

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Solution

The fourth proportional to 68,179.10, 102,274.41 and 21,445.34 is: 32,169.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,179.10 : 102,274.41 = 21,445.34 : x
  2. Step 2: Convert to fraction form
    68,179.10/102,274.41 = 21,445.34/x
  3. Step 3: Cross multiply
    68,179.10x = 102,274.41 × 21,445.34
  4. Step 4: Simplify right side
    68,179.10x = 2,193,309,495.75
  5. Step 5: Solve for x
    x = 2,193,309,495.75/68,179.10
  6. Step 6: Final answer
    x = 32,169.82

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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.