Home / 57,231.03-78,979.74-31,738.44

Finding the Fourth Proportional to 57,231.03, 78,979.74 and 31,738.44

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Solution

The fourth proportional to 57,231.03, 78,979.74 and 31,738.44 is: 43,799.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,231.03 : 78,979.74 = 31,738.44 : x
  2. Step 2: Convert to fraction form
    57,231.03/78,979.74 = 31,738.44/x
  3. Step 3: Cross multiply
    57,231.03x = 78,979.74 × 31,738.44
  4. Step 4: Simplify right side
    57,231.03x = 2,506,693,739.21
  5. Step 5: Solve for x
    x = 2,506,693,739.21/57,231.03
  6. Step 6: Final answer
    x = 43,799.56

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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.