Home / 274,621.28-411,976.36-85,037.09

Finding the Fourth Proportional to 274,621.28, 411,976.36 and 85,037.09

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Solution

The fourth proportional to 274,621.28, 411,976.36 and 85,037.09 is: 127,569.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,621.28 : 411,976.36 = 85,037.09 : x
  2. Step 2: Convert to fraction form
    274,621.28/411,976.36 = 85,037.09/x
  3. Step 3: Cross multiply
    274,621.28x = 411,976.36 × 85,037.09
  4. Step 4: Simplify right side
    274,621.28x = 35,033,268,530.72
  5. Step 5: Solve for x
    x = 35,033,268,530.72/274,621.28
  6. Step 6: Final answer
    x = 127,569.39

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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.