Home / 81,198.32-111,998.08-52,942.28

Finding the Fourth Proportional to 81,198.32, 111,998.08 and 52,942.28

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Solution

The fourth proportional to 81,198.32, 111,998.08 and 52,942.28 is: 73,024.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,198.32 : 111,998.08 = 52,942.28 : x
  2. Step 2: Convert to fraction form
    81,198.32/111,998.08 = 52,942.28/x
  3. Step 3: Cross multiply
    81,198.32x = 111,998.08 × 52,942.28
  4. Step 4: Simplify right side
    81,198.32x = 5,929,433,995.90
  5. Step 5: Solve for x
    x = 5,929,433,995.90/81,198.32
  6. Step 6: Final answer
    x = 73,024.10

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1.5x scale

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.