Home / 54,267.20-81,362.40-20,974.40

Finding the Fourth Proportional to 54,267.20, 81,362.40 and 20,974.40

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Solution

The fourth proportional to 54,267.20, 81,362.40 and 20,974.40 is: 31,446.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,267.20 : 81,362.40 = 20,974.40 : x
  2. Step 2: Convert to fraction form
    54,267.20/81,362.40 = 20,974.40/x
  3. Step 3: Cross multiply
    54,267.20x = 81,362.40 × 20,974.40
  4. Step 4: Simplify right side
    54,267.20x = 1,706,527,522.56
  5. Step 5: Solve for x
    x = 1,706,527,522.56/54,267.20
  6. Step 6: Final answer
    x = 31,446.76

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1.5x scale

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.