Home / 68,573.60-102,867.96-21,815.56

Finding the Fourth Proportional to 68,573.60, 102,867.96 and 21,815.56

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Solution

The fourth proportional to 68,573.60, 102,867.96 and 21,815.56 is: 32,725.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,573.60 : 102,867.96 = 21,815.56 : x
  2. Step 2: Convert to fraction form
    68,573.60/102,867.96 = 21,815.56/x
  3. Step 3: Cross multiply
    68,573.60x = 102,867.96 × 21,815.56
  4. Step 4: Simplify right side
    68,573.60x = 2,244,122,153.46
  5. Step 5: Solve for x
    x = 2,244,122,153.46/68,573.60
  6. Step 6: Final answer
    x = 32,725.75

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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.