Home / 68,114.48-102,171.60-21,367.28

Finding the Fourth Proportional to 68,114.48, 102,171.60 and 21,367.28

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Solution

The fourth proportional to 68,114.48, 102,171.60 and 21,367.28 is: 32,050.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,114.48 : 102,171.60 = 21,367.28 : x
  2. Step 2: Convert to fraction form
    68,114.48/102,171.60 = 21,367.28/x
  3. Step 3: Cross multiply
    68,114.48x = 102,171.60 × 21,367.28
  4. Step 4: Simplify right side
    68,114.48x = 2,183,129,185.25
  5. Step 5: Solve for x
    x = 2,183,129,185.25/68,114.48
  6. Step 6: Final answer
    x = 32,050.88

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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.