Home / 68,662.08-102,902.40-31,227.12

Finding the Fourth Proportional to 68,662.08, 102,902.40 and 31,227.12

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Solution

The fourth proportional to 68,662.08, 102,902.40 and 31,227.12 is: 46,799.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,662.08 : 102,902.40 = 31,227.12 : x
  2. Step 2: Convert to fraction form
    68,662.08/102,902.40 = 31,227.12/x
  3. Step 3: Cross multiply
    68,662.08x = 102,902.40 × 31,227.12
  4. Step 4: Simplify right side
    68,662.08x = 3,213,345,593.09
  5. Step 5: Solve for x
    x = 3,213,345,593.09/68,662.08
  6. Step 6: Final answer
    x = 46,799.42

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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.