Home / 57,518.88-86,317.73-20,078.96

Finding the Fourth Proportional to 57,518.88, 86,317.73 and 20,078.96

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Solution

The fourth proportional to 57,518.88, 86,317.73 and 20,078.96 is: 30,132.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,518.88 : 86,317.73 = 20,078.96 : x
  2. Step 2: Convert to fraction form
    57,518.88/86,317.73 = 20,078.96/x
  3. Step 3: Cross multiply
    57,518.88x = 86,317.73 × 20,078.96
  4. Step 4: Simplify right side
    57,518.88x = 1,733,169,791.27
  5. Step 5: Solve for x
    x = 1,733,169,791.27/57,518.88
  6. Step 6: Final answer
    x = 30,132.19

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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.