Home / 54,491.11-81,734.45-18,960.56

Finding the Fourth Proportional to 54,491.11, 81,734.45 and 18,960.56

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Solution

The fourth proportional to 54,491.11, 81,734.45 and 18,960.56 is: 28,440.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,491.11 : 81,734.45 = 18,960.56 : x
  2. Step 2: Convert to fraction form
    54,491.11/81,734.45 = 18,960.56/x
  3. Step 3: Cross multiply
    54,491.11x = 81,734.45 × 18,960.56
  4. Step 4: Simplify right side
    54,491.11x = 1,549,731,312.73
  5. Step 5: Solve for x
    x = 1,549,731,312.73/54,491.11
  6. Step 6: Final answer
    x = 28,440.07

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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.