Home / 57,378.45-86,032.44-19,922.43

Finding the Fourth Proportional to 57,378.45, 86,032.44 and 19,922.43

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Solution

The fourth proportional to 57,378.45, 86,032.44 and 19,922.43 is: 29,871.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,378.45 : 86,032.44 = 19,922.43 : x
  2. Step 2: Convert to fraction form
    57,378.45/86,032.44 = 19,922.43/x
  3. Step 3: Cross multiply
    57,378.45x = 86,032.44 × 19,922.43
  4. Step 4: Simplify right side
    57,378.45x = 1,713,975,164.02
  5. Step 5: Solve for x
    x = 1,713,975,164.02/57,378.45
  6. Step 6: Final answer
    x = 29,871.41

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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.