Home / 57,419.96-86,131.85-19,983.15

Finding the Fourth Proportional to 57,419.96, 86,131.85 and 19,983.15

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Solution

The fourth proportional to 57,419.96, 86,131.85 and 19,983.15 is: 29,975.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,419.96 : 86,131.85 = 19,983.15 : x
  2. Step 2: Convert to fraction form
    57,419.96/86,131.85 = 19,983.15/x
  3. Step 3: Cross multiply
    57,419.96x = 86,131.85 × 19,983.15
  4. Step 4: Simplify right side
    57,419.96x = 1,721,185,578.41
  5. Step 5: Solve for x
    x = 1,721,185,578.41/57,419.96
  6. Step 6: Final answer
    x = 29,975.39

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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.