Home / 57,868.84-86,759.58-20,412.52

Finding the Fourth Proportional to 57,868.84, 86,759.58 and 20,412.52

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Solution

The fourth proportional to 57,868.84, 86,759.58 and 20,412.52 is: 30,603.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,868.84 : 86,759.58 = 20,412.52 : x
  2. Step 2: Convert to fraction form
    57,868.84/86,759.58 = 20,412.52/x
  3. Step 3: Cross multiply
    57,868.84x = 86,759.58 × 20,412.52
  4. Step 4: Simplify right side
    57,868.84x = 1,770,981,661.94
  5. Step 5: Solve for x
    x = 1,770,981,661.94/57,868.84
  6. Step 6: Final answer
    x = 30,603.37

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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.