Home / 68,627.60-102,949.08-21,869.84

Finding the Fourth Proportional to 68,627.60, 102,949.08 and 21,869.84

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Solution

The fourth proportional to 68,627.60, 102,949.08 and 21,869.84 is: 32,807.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,627.60 : 102,949.08 = 21,869.84 : x
  2. Step 2: Convert to fraction form
    68,627.60/102,949.08 = 21,869.84/x
  3. Step 3: Cross multiply
    68,627.60x = 102,949.08 × 21,869.84
  4. Step 4: Simplify right side
    68,627.60x = 2,251,479,907.75
  5. Step 5: Solve for x
    x = 2,251,479,907.75/68,627.60
  6. Step 6: Final answer
    x = 32,807.21

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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.