Home / 49,138.12-67,791.36-30,242.44

Finding the Fourth Proportional to 49,138.12, 67,791.36 and 30,242.44

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Solution

The fourth proportional to 49,138.12, 67,791.36 and 30,242.44 is: 41,722.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,138.12 : 67,791.36 = 30,242.44 : x
  2. Step 2: Convert to fraction form
    49,138.12/67,791.36 = 30,242.44/x
  3. Step 3: Cross multiply
    49,138.12x = 67,791.36 × 30,242.44
  4. Step 4: Simplify right side
    49,138.12x = 2,050,176,137.32
  5. Step 5: Solve for x
    x = 2,050,176,137.32/49,138.12
  6. Step 6: Final answer
    x = 41,722.72

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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.