Home / 55,421.25-83,149.59-19,858.56

Finding the Fourth Proportional to 55,421.25, 83,149.59 and 19,858.56

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Solution

The fourth proportional to 55,421.25, 83,149.59 and 19,858.56 is: 29,794.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,421.25 : 83,149.59 = 19,858.56 : x
  2. Step 2: Convert to fraction form
    55,421.25/83,149.59 = 19,858.56/x
  3. Step 3: Cross multiply
    55,421.25x = 83,149.59 × 19,858.56
  4. Step 4: Simplify right side
    55,421.25x = 1,651,231,121.99
  5. Step 5: Solve for x
    x = 1,651,231,121.99/55,421.25
  6. Step 6: Final answer
    x = 29,794.19

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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.