Home / 80,941.94-121,383.74-34,198.46

Finding the Fourth Proportional to 80,941.94, 121,383.74 and 34,198.46

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Solution

The fourth proportional to 80,941.94, 121,383.74 and 34,198.46 is: 51,285.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,941.94 : 121,383.74 = 34,198.46 : x
  2. Step 2: Convert to fraction form
    80,941.94/121,383.74 = 34,198.46/x
  3. Step 3: Cross multiply
    80,941.94x = 121,383.74 × 34,198.46
  4. Step 4: Simplify right side
    80,941.94x = 4,151,136,455.62
  5. Step 5: Solve for x
    x = 4,151,136,455.62/80,941.94
  6. Step 6: Final answer
    x = 51,285.36

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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.