Home / 75,078.80-103,626.24-49,589.72

Finding the Fourth Proportional to 75,078.80, 103,626.24 and 49,589.72

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Solution

The fourth proportional to 75,078.80, 103,626.24 and 49,589.72 is: 68,445.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,078.80 : 103,626.24 = 49,589.72 : x
  2. Step 2: Convert to fraction form
    75,078.80/103,626.24 = 49,589.72/x
  3. Step 3: Cross multiply
    75,078.80x = 103,626.24 × 49,589.72
  4. Step 4: Simplify right side
    75,078.80x = 5,138,796,226.25
  5. Step 5: Solve for x
    x = 5,138,796,226.25/75,078.80
  6. Step 6: Final answer
    x = 68,445.37

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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.