Home / 55,321.36-76,343.13-31,448.03

Finding the Fourth Proportional to 55,321.36, 76,343.13 and 31,448.03

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Solution

The fourth proportional to 55,321.36, 76,343.13 and 31,448.03 is: 43,398.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,321.36 : 76,343.13 = 31,448.03 : x
  2. Step 2: Convert to fraction form
    55,321.36/76,343.13 = 31,448.03/x
  3. Step 3: Cross multiply
    55,321.36x = 76,343.13 × 31,448.03
  4. Step 4: Simplify right side
    55,321.36x = 2,400,841,401.27
  5. Step 5: Solve for x
    x = 2,400,841,401.27/55,321.36
  6. Step 6: Final answer
    x = 43,398.09

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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.