Home / 57,378.12-86,081.03-19,932.75

Finding the Fourth Proportional to 57,378.12, 86,081.03 and 19,932.75

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Solution

The fourth proportional to 57,378.12, 86,081.03 and 19,932.75 is: 29,903.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,378.12 : 86,081.03 = 19,932.75 : x
  2. Step 2: Convert to fraction form
    57,378.12/86,081.03 = 19,932.75/x
  3. Step 3: Cross multiply
    57,378.12x = 86,081.03 × 19,932.75
  4. Step 4: Simplify right side
    57,378.12x = 1,715,831,625.82
  5. Step 5: Solve for x
    x = 1,715,831,625.82/57,378.12
  6. Step 6: Final answer
    x = 29,903.93

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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.