Home / 54,490.34-81,729.30-18,944.84

Finding the Fourth Proportional to 54,490.34, 81,729.30 and 18,944.84

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Solution

The fourth proportional to 54,490.34, 81,729.30 and 18,944.84 is: 28,415.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,490.34 : 81,729.30 = 18,944.84 : x
  2. Step 2: Convert to fraction form
    54,490.34/81,729.30 = 18,944.84/x
  3. Step 3: Cross multiply
    54,490.34x = 81,729.30 × 18,944.84
  4. Step 4: Simplify right side
    54,490.34x = 1,548,348,511.81
  5. Step 5: Solve for x
    x = 1,548,348,511.81/54,490.34
  6. Step 6: Final answer
    x = 28,415.10

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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.