Home / 54,303.39-81,435.11-18,755.69

Finding the Fourth Proportional to 54,303.39, 81,435.11 and 18,755.69

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Solution

The fourth proportional to 54,303.39, 81,435.11 and 18,755.69 is: 28,126.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,303.39 : 81,435.11 = 18,755.69 : x
  2. Step 2: Convert to fraction form
    54,303.39/81,435.11 = 18,755.69/x
  3. Step 3: Cross multiply
    54,303.39x = 81,435.11 × 18,755.69
  4. Step 4: Simplify right side
    54,303.39x = 1,527,371,177.32
  5. Step 5: Solve for x
    x = 1,527,371,177.32/54,303.39
  6. Step 6: Final answer
    x = 28,126.63

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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.