Home / 54,599.43-81,881.73-21,311.40

Finding the Fourth Proportional to 54,599.43, 81,881.73 and 21,311.40

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Solution

The fourth proportional to 54,599.43, 81,881.73 and 21,311.40 is: 31,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,599.43 : 81,881.73 = 21,311.40 : x
  2. Step 2: Convert to fraction form
    54,599.43/81,881.73 = 21,311.40/x
  3. Step 3: Cross multiply
    54,599.43x = 81,881.73 × 21,311.40
  4. Step 4: Simplify right side
    54,599.43x = 1,745,014,300.72
  5. Step 5: Solve for x
    x = 1,745,014,300.72/54,599.43
  6. Step 6: Final answer
    x = 31,960.30

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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.