Home / 54,355.10-81,423.30-30,954.20

Finding the Fourth Proportional to 54,355.10, 81,423.30 and 30,954.20

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Solution

The fourth proportional to 54,355.10, 81,423.30 and 30,954.20 is: 46,369.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,355.10 : 81,423.30 = 30,954.20 : x
  2. Step 2: Convert to fraction form
    54,355.10/81,423.30 = 30,954.20/x
  3. Step 3: Cross multiply
    54,355.10x = 81,423.30 × 30,954.20
  4. Step 4: Simplify right side
    54,355.10x = 2,520,393,112.86
  5. Step 5: Solve for x
    x = 2,520,393,112.86/54,355.10
  6. Step 6: Final answer
    x = 46,369.03

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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.