Home / 77,193.23-115,729.35-30,481.07

Finding the Fourth Proportional to 77,193.23, 115,729.35 and 30,481.07

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Solution

The fourth proportional to 77,193.23, 115,729.35 and 30,481.07 is: 45,697.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,193.23 : 115,729.35 = 30,481.07 : x
  2. Step 2: Convert to fraction form
    77,193.23/115,729.35 = 30,481.07/x
  3. Step 3: Cross multiply
    77,193.23x = 115,729.35 × 30,481.07
  4. Step 4: Simplify right side
    77,193.23x = 3,527,553,839.76
  5. Step 5: Solve for x
    x = 3,527,553,839.76/77,193.23
  6. Step 6: Final answer
    x = 45,697.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.