Home / 57,874.26-86,789.37-20,427.36

Finding the Fourth Proportional to 57,874.26, 86,789.37 and 20,427.36

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Solution

The fourth proportional to 57,874.26, 86,789.37 and 20,427.36 is: 30,633.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,874.26 : 86,789.37 = 20,427.36 : x
  2. Step 2: Convert to fraction form
    57,874.26/86,789.37 = 20,427.36/x
  3. Step 3: Cross multiply
    57,874.26x = 86,789.37 × 20,427.36
  4. Step 4: Simplify right side
    57,874.26x = 1,772,877,705.16
  5. Step 5: Solve for x
    x = 1,772,877,705.16/57,874.26
  6. Step 6: Final answer
    x = 30,633.27

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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.