Home / 81,175.78-121,779.62-25,006.33

Finding the Fourth Proportional to 81,175.78, 121,779.62 and 25,006.33

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Solution

The fourth proportional to 81,175.78, 121,779.62 and 25,006.33 is: 37,514.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,175.78 : 121,779.62 = 25,006.33 : x
  2. Step 2: Convert to fraction form
    81,175.78/121,779.62 = 25,006.33/x
  3. Step 3: Cross multiply
    81,175.78x = 121,779.62 × 25,006.33
  4. Step 4: Simplify right side
    81,175.78x = 3,045,261,427.51
  5. Step 5: Solve for x
    x = 3,045,261,427.51/81,175.78
  6. Step 6: Final answer
    x = 37,514.41

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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.