Home / 49,321.23-68,009.79-31,393.32

Finding the Fourth Proportional to 49,321.23, 68,009.79 and 31,393.32

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Solution

The fourth proportional to 49,321.23, 68,009.79 and 31,393.32 is: 43,288.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,321.23 : 68,009.79 = 31,393.32 : x
  2. Step 2: Convert to fraction form
    49,321.23/68,009.79 = 31,393.32/x
  3. Step 3: Cross multiply
    49,321.23x = 68,009.79 × 31,393.32
  4. Step 4: Simplify right side
    49,321.23x = 2,135,053,100.60
  5. Step 5: Solve for x
    x = 2,135,053,100.60/49,321.23
  6. Step 6: Final answer
    x = 43,288.72

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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.