Home / 57,729.26-79,721.40-54,584.26

Finding the Fourth Proportional to 57,729.26, 79,721.40 and 54,584.26

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Solution

The fourth proportional to 57,729.26, 79,721.40 and 54,584.26 is: 75,378.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,729.26 : 79,721.40 = 54,584.26 : x
  2. Step 2: Convert to fraction form
    57,729.26/79,721.40 = 54,584.26/x
  3. Step 3: Cross multiply
    57,729.26x = 79,721.40 × 54,584.26
  4. Step 4: Simplify right side
    57,729.26x = 4,351,533,425.86
  5. Step 5: Solve for x
    x = 4,351,533,425.86/57,729.26
  6. Step 6: Final answer
    x = 75,378.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.