Home / 54,121.70-74,639.54-33,980.44

Finding the Fourth Proportional to 54,121.70, 74,639.54 and 33,980.44

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Solution

The fourth proportional to 54,121.70, 74,639.54 and 33,980.44 is: 46,862.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,121.70 : 74,639.54 = 33,980.44 : x
  2. Step 2: Convert to fraction form
    54,121.70/74,639.54 = 33,980.44/x
  3. Step 3: Cross multiply
    54,121.70x = 74,639.54 × 33,980.44
  4. Step 4: Simplify right side
    54,121.70x = 2,536,284,410.60
  5. Step 5: Solve for x
    x = 2,536,284,410.60/54,121.70
  6. Step 6: Final answer
    x = 46,862.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.