Home / 80,917.44-121,376.16-53,208.96

Finding the Fourth Proportional to 80,917.44, 121,376.16 and 53,208.96

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Solution

The fourth proportional to 80,917.44, 121,376.16 and 53,208.96 is: 79,813.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,917.44 : 121,376.16 = 53,208.96 : x
  2. Step 2: Convert to fraction form
    80,917.44/121,376.16 = 53,208.96/x
  3. Step 3: Cross multiply
    80,917.44x = 121,376.16 × 53,208.96
  4. Step 4: Simplify right side
    80,917.44x = 6,458,299,242.39
  5. Step 5: Solve for x
    x = 6,458,299,242.39/80,917.44
  6. Step 6: Final answer
    x = 79,813.44

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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.