Home / 57,845.68-86,782.37-19,894.30

Finding the Fourth Proportional to 57,845.68, 86,782.37 and 19,894.30

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Solution

The fourth proportional to 57,845.68, 86,782.37 and 19,894.30 is: 29,846.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,845.68 : 86,782.37 = 19,894.30 : x
  2. Step 2: Convert to fraction form
    57,845.68/86,782.37 = 19,894.30/x
  3. Step 3: Cross multiply
    57,845.68x = 86,782.37 × 19,894.30
  4. Step 4: Simplify right side
    57,845.68x = 1,726,474,119.31
  5. Step 5: Solve for x
    x = 1,726,474,119.31/57,845.68
  6. Step 6: Final answer
    x = 29,846.21

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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.