Home / 77,164.44-115,811.82-30,450.12

Finding the Fourth Proportional to 77,164.44, 115,811.82 and 30,450.12

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Solution

The fourth proportional to 77,164.44, 115,811.82 and 30,450.12 is: 45,700.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,164.44 : 115,811.82 = 30,450.12 : x
  2. Step 2: Convert to fraction form
    77,164.44/115,811.82 = 30,450.12/x
  3. Step 3: Cross multiply
    77,164.44x = 115,811.82 × 30,450.12
  4. Step 4: Simplify right side
    77,164.44x = 3,526,483,816.42
  5. Step 5: Solve for x
    x = 3,526,483,816.42/77,164.44
  6. Step 6: Final answer
    x = 45,700.89

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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.