Home / 49,319.36-68,007.20-31,391.44

Finding the Fourth Proportional to 49,319.36, 68,007.20 and 31,391.44

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Solution

The fourth proportional to 49,319.36, 68,007.20 and 31,391.44 is: 43,286.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,319.36 : 68,007.20 = 31,391.44 : x
  2. Step 2: Convert to fraction form
    49,319.36/68,007.20 = 31,391.44/x
  3. Step 3: Cross multiply
    49,319.36x = 68,007.20 × 31,391.44
  4. Step 4: Simplify right side
    49,319.36x = 2,134,843,938.37
  5. Step 5: Solve for x
    x = 2,134,843,938.37/49,319.36
  6. Step 6: Final answer
    x = 43,286.12

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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.