Home / 79,619.82-119,450.25-57,156.54

Finding the Fourth Proportional to 79,619.82, 119,450.25 and 57,156.54

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Solution

The fourth proportional to 79,619.82, 119,450.25 and 57,156.54 is: 85,749.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,619.82 : 119,450.25 = 57,156.54 : x
  2. Step 2: Convert to fraction form
    79,619.82/119,450.25 = 57,156.54/x
  3. Step 3: Cross multiply
    79,619.82x = 119,450.25 × 57,156.54
  4. Step 4: Simplify right side
    79,619.82x = 6,827,362,992.14
  5. Step 5: Solve for x
    x = 6,827,362,992.14/79,619.82
  6. Step 6: Final answer
    x = 85,749.54

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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.