Home / 68,268.20-102,416.70-21,525.80

Finding the Fourth Proportional to 68,268.20, 102,416.70 and 21,525.80

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Solution

The fourth proportional to 68,268.20, 102,416.70 and 21,525.80 is: 32,293.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,268.20 : 102,416.70 = 21,525.80 : x
  2. Step 2: Convert to fraction form
    68,268.20/102,416.70 = 21,525.80/x
  3. Step 3: Cross multiply
    68,268.20x = 102,416.70 × 21,525.80
  4. Step 4: Simplify right side
    68,268.20x = 2,204,601,400.86
  5. Step 5: Solve for x
    x = 2,204,601,400.86/68,268.20
  6. Step 6: Final answer
    x = 32,293.24

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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.