Home / 54,268.72-74,897.26-30,390.80

Finding the Fourth Proportional to 54,268.72, 74,897.26 and 30,390.80

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Solution

The fourth proportional to 54,268.72, 74,897.26 and 30,390.80 is: 41,942.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,268.72 : 74,897.26 = 30,390.80 : x
  2. Step 2: Convert to fraction form
    54,268.72/74,897.26 = 30,390.80/x
  3. Step 3: Cross multiply
    54,268.72x = 74,897.26 × 30,390.80
  4. Step 4: Simplify right side
    54,268.72x = 2,276,187,198.74
  5. Step 5: Solve for x
    x = 2,276,187,198.74/54,268.72
  6. Step 6: Final answer
    x = 41,942.90

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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.