Home / 54,406.80-75,079.44-30,534.48

Finding the Fourth Proportional to 54,406.80, 75,079.44 and 30,534.48

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Solution

The fourth proportional to 54,406.80, 75,079.44 and 30,534.48 is: 42,136.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,406.80 : 75,079.44 = 30,534.48 : x
  2. Step 2: Convert to fraction form
    54,406.80/75,079.44 = 30,534.48/x
  3. Step 3: Cross multiply
    54,406.80x = 75,079.44 × 30,534.48
  4. Step 4: Simplify right side
    54,406.80x = 2,292,511,659.09
  5. Step 5: Solve for x
    x = 2,292,511,659.09/54,406.80
  6. Step 6: Final answer
    x = 42,136.49

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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.