Home / 55,170.21-76,136.37-31,300.47

Finding the Fourth Proportional to 55,170.21, 76,136.37 and 31,300.47

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Solution

The fourth proportional to 55,170.21, 76,136.37 and 31,300.47 is: 43,195.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,170.21 : 76,136.37 = 31,300.47 : x
  2. Step 2: Convert to fraction form
    55,170.21/76,136.37 = 31,300.47/x
  3. Step 3: Cross multiply
    55,170.21x = 76,136.37 × 31,300.47
  4. Step 4: Simplify right side
    55,170.21x = 2,383,104,165.09
  5. Step 5: Solve for x
    x = 2,383,104,165.09/55,170.21
  6. Step 6: Final answer
    x = 43,195.49

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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.