Home / 86,906.20-130,361.73-30,738.37

Finding the Fourth Proportional to 86,906.20, 130,361.73 and 30,738.37

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Solution

The fourth proportional to 86,906.20, 130,361.73 and 30,738.37 is: 46,108.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,906.20 : 130,361.73 = 30,738.37 : x
  2. Step 2: Convert to fraction form
    86,906.20/130,361.73 = 30,738.37/x
  3. Step 3: Cross multiply
    86,906.20x = 130,361.73 × 30,738.37
  4. Step 4: Simplify right side
    86,906.20x = 4,007,107,090.58
  5. Step 5: Solve for x
    x = 4,007,107,090.58/86,906.20
  6. Step 6: Final answer
    x = 46,108.41

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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.