Home / 79,904.25-119,857.32-20,736.32

Finding the Fourth Proportional to 79,904.25, 119,857.32 and 20,736.32

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Solution

The fourth proportional to 79,904.25, 119,857.32 and 20,736.32 is: 31,104.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,904.25 : 119,857.32 = 20,736.32 : x
  2. Step 2: Convert to fraction form
    79,904.25/119,857.32 = 20,736.32/x
  3. Step 3: Cross multiply
    79,904.25x = 119,857.32 × 20,736.32
  4. Step 4: Simplify right side
    79,904.25x = 2,485,399,142.58
  5. Step 5: Solve for x
    x = 2,485,399,142.58/79,904.25
  6. Step 6: Final answer
    x = 31,104.72

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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.