Home / 55,053.93-75,974.36-31,185.20

Finding the Fourth Proportional to 55,053.93, 75,974.36 and 31,185.20

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Solution

The fourth proportional to 55,053.93, 75,974.36 and 31,185.20 is: 43,035.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,053.93 : 75,974.36 = 31,185.20 : x
  2. Step 2: Convert to fraction form
    55,053.93/75,974.36 = 31,185.20/x
  3. Step 3: Cross multiply
    55,053.93x = 75,974.36 × 31,185.20
  4. Step 4: Simplify right side
    55,053.93x = 2,369,275,645.48
  5. Step 5: Solve for x
    x = 2,369,275,645.48/55,053.93
  6. Step 6: Final answer
    x = 43,035.54

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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.