Home / 54,291.22-81,416.81-18,743.49

Finding the Fourth Proportional to 54,291.22, 81,416.81 and 18,743.49

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Solution

The fourth proportional to 54,291.22, 81,416.81 and 18,743.49 is: 28,108.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,291.22 : 81,416.81 = 18,743.49 : x
  2. Step 2: Convert to fraction form
    54,291.22/81,416.81 = 18,743.49/x
  3. Step 3: Cross multiply
    54,291.22x = 81,416.81 × 18,743.49
  4. Step 4: Simplify right side
    54,291.22x = 1,526,035,210.93
  5. Step 5: Solve for x
    x = 1,526,035,210.93/54,291.22
  6. Step 6: Final answer
    x = 28,108.33

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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.