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Finding the Fourth Proportional to 56,338.44, 77,751 and 31,189.56

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Solution

The fourth proportional to 56,338.44, 77,751 and 31,189.56 is: 43,043.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,338.44 : 77,751 = 31,189.56 : x
  2. Step 2: Convert to fraction form
    56,338.44/77,751 = 31,189.56/x
  3. Step 3: Cross multiply
    56,338.44x = 77,751 × 31,189.56
  4. Step 4: Simplify right side
    56,338.44x = 2,425,019,479.56
  5. Step 5: Solve for x
    x = 2,425,019,479.56/56,338.44
  6. Step 6: Final answer
    x = 43,043.78

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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.