Home / 77,422.26-116,138.79-30,675

Finding the Fourth Proportional to 77,422.26, 116,138.79 and 30,675

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Solution

The fourth proportional to 77,422.26, 116,138.79 and 30,675 is: 46,014.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,422.26 : 116,138.79 = 30,675 : x
  2. Step 2: Convert to fraction form
    77,422.26/116,138.79 = 30,675/x
  3. Step 3: Cross multiply
    77,422.26x = 116,138.79 × 30,675
  4. Step 4: Simplify right side
    77,422.26x = 3,562,557,383.25
  5. Step 5: Solve for x
    x = 3,562,557,383.25/77,422.26
  6. Step 6: Final answer
    x = 46,014.64

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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.