Home / 68,219.36-102,324.04-21,485.60

Finding the Fourth Proportional to 68,219.36, 102,324.04 and 21,485.60

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Solution

The fourth proportional to 68,219.36, 102,324.04 and 21,485.60 is: 32,226.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,219.36 : 102,324.04 = 21,485.60 : x
  2. Step 2: Convert to fraction form
    68,219.36/102,324.04 = 21,485.60/x
  3. Step 3: Cross multiply
    68,219.36x = 102,324.04 × 21,485.60
  4. Step 4: Simplify right side
    68,219.36x = 2,198,493,393.82
  5. Step 5: Solve for x
    x = 2,198,493,393.82/68,219.36
  6. Step 6: Final answer
    x = 32,226.83

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1.5x scale

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.