Home / 281,921.36-422,883.45-71,559.36

Finding the Fourth Proportional to 281,921.36, 422,883.45 and 71,559.36

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Solution

The fourth proportional to 281,921.36, 422,883.45 and 71,559.36 is: 107,339.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,921.36 : 422,883.45 = 71,559.36 : x
  2. Step 2: Convert to fraction form
    281,921.36/422,883.45 = 71,559.36/x
  3. Step 3: Cross multiply
    281,921.36x = 422,883.45 × 71,559.36
  4. Step 4: Simplify right side
    281,921.36x = 30,261,269,036.59
  5. Step 5: Solve for x
    x = 30,261,269,036.59/281,921.36
  6. Step 6: Final answer
    x = 107,339.40

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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.