Home / 53,361.48-80,083.54-20,111.79

Finding the Fourth Proportional to 53,361.48, 80,083.54 and 20,111.79

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Solution

The fourth proportional to 53,361.48, 80,083.54 and 20,111.79 is: 30,183.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,361.48 : 80,083.54 = 20,111.79 : x
  2. Step 2: Convert to fraction form
    53,361.48/80,083.54 = 20,111.79/x
  3. Step 3: Cross multiply
    53,361.48x = 80,083.54 × 20,111.79
  4. Step 4: Simplify right side
    53,361.48x = 1,610,623,551.26
  5. Step 5: Solve for x
    x = 1,610,623,551.26/53,361.48
  6. Step 6: Final answer
    x = 30,183.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.