Home / 68,989.28-95,198.04-42,138.32

Finding the Fourth Proportional to 68,989.28, 95,198.04 and 42,138.32

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Solution

The fourth proportional to 68,989.28, 95,198.04 and 42,138.32 is: 58,146.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,989.28 : 95,198.04 = 42,138.32 : x
  2. Step 2: Convert to fraction form
    68,989.28/95,198.04 = 42,138.32/x
  3. Step 3: Cross multiply
    68,989.28x = 95,198.04 × 42,138.32
  4. Step 4: Simplify right side
    68,989.28x = 4,011,485,472.89
  5. Step 5: Solve for x
    x = 4,011,485,472.89/68,989.28
  6. Step 6: Final answer
    x = 58,146.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.