Home / 55,178.36-82,717.86-20,093.12

Finding the Fourth Proportional to 55,178.36, 82,717.86 and 20,093.12

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Solution

The fourth proportional to 55,178.36, 82,717.86 and 20,093.12 is: 30,121.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,178.36 : 82,717.86 = 20,093.12 : x
  2. Step 2: Convert to fraction form
    55,178.36/82,717.86 = 20,093.12/x
  3. Step 3: Cross multiply
    55,178.36x = 82,717.86 × 20,093.12
  4. Step 4: Simplify right side
    55,178.36x = 1,662,059,887.12
  5. Step 5: Solve for x
    x = 1,662,059,887.12/55,178.36
  6. Step 6: Final answer
    x = 30,121.59

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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.