Home / 57,704.22-79,659.99-45,729.18

Finding the Fourth Proportional to 57,704.22, 79,659.99 and 45,729.18

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Solution

The fourth proportional to 57,704.22, 79,659.99 and 45,729.18 is: 63,128.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,704.22 : 79,659.99 = 45,729.18 : x
  2. Step 2: Convert to fraction form
    57,704.22/79,659.99 = 45,729.18/x
  3. Step 3: Cross multiply
    57,704.22x = 79,659.99 × 45,729.18
  4. Step 4: Simplify right side
    57,704.22x = 3,642,786,021.51
  5. Step 5: Solve for x
    x = 3,642,786,021.51/57,704.22
  6. Step 6: Final answer
    x = 63,128.59

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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.