Home / 79,557.54-109,789.79-43,749.87

Finding the Fourth Proportional to 79,557.54, 109,789.79 and 43,749.87

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Solution

The fourth proportional to 79,557.54, 109,789.79 and 43,749.87 is: 60,375.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,557.54 : 109,789.79 = 43,749.87 : x
  2. Step 2: Convert to fraction form
    79,557.54/109,789.79 = 43,749.87/x
  3. Step 3: Cross multiply
    79,557.54x = 109,789.79 × 43,749.87
  4. Step 4: Simplify right side
    79,557.54x = 4,803,288,655.46
  5. Step 5: Solve for x
    x = 4,803,288,655.46/79,557.54
  6. Step 6: Final answer
    x = 60,375.03

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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.