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Finding the Fourth Proportional to 68,016.82, 102,025.47 and 20,632.32

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Solution

The fourth proportional to 68,016.82, 102,025.47 and 20,632.32 is: 30,948.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,016.82 : 102,025.47 = 20,632.32 : x
  2. Step 2: Convert to fraction form
    68,016.82/102,025.47 = 20,632.32/x
  3. Step 3: Cross multiply
    68,016.82x = 102,025.47 × 20,632.32
  4. Step 4: Simplify right side
    68,016.82x = 2,105,021,914.50
  5. Step 5: Solve for x
    x = 2,105,021,914.50/68,016.82
  6. Step 6: Final answer
    x = 30,948.55

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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.