Home / 54,145.24-74,711.46-49,790.32

Finding the Fourth Proportional to 54,145.24, 74,711.46 and 49,790.32

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Solution

The fourth proportional to 54,145.24, 74,711.46 and 49,790.32 is: 68,702.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,145.24 : 74,711.46 = 49,790.32 : x
  2. Step 2: Convert to fraction form
    54,145.24/74,711.46 = 49,790.32/x
  3. Step 3: Cross multiply
    54,145.24x = 74,711.46 × 49,790.32
  4. Step 4: Simplify right side
    54,145.24x = 3,719,907,501.07
  5. Step 5: Solve for x
    x = 3,719,907,501.07/54,145.24
  6. Step 6: Final answer
    x = 68,702.39

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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.