Home / 68,016.27-102,024.64-20,631.77

Finding the Fourth Proportional to 68,016.27, 102,024.64 and 20,631.77

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Solution

The fourth proportional to 68,016.27, 102,024.64 and 20,631.77 is: 30,947.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,016.27 : 102,024.64 = 20,631.77 : x
  2. Step 2: Convert to fraction form
    68,016.27/102,024.64 = 20,631.77/x
  3. Step 3: Cross multiply
    68,016.27x = 102,024.64 × 20,631.77
  4. Step 4: Simplify right side
    68,016.27x = 2,104,949,164.55
  5. Step 5: Solve for x
    x = 2,104,949,164.55/68,016.27
  6. Step 6: Final answer
    x = 30,947.73

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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.