Home / 54,172.85-81,246.52-30,490.48

Finding the Fourth Proportional to 54,172.85, 81,246.52 and 30,490.48

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Solution

The fourth proportional to 54,172.85, 81,246.52 and 30,490.48 is: 45,728.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,172.85 : 81,246.52 = 30,490.48 : x
  2. Step 2: Convert to fraction form
    54,172.85/81,246.52 = 30,490.48/x
  3. Step 3: Cross multiply
    54,172.85x = 81,246.52 × 30,490.48
  4. Step 4: Simplify right side
    54,172.85x = 2,477,244,990.03
  5. Step 5: Solve for x
    x = 2,477,244,990.03/54,172.85
  6. Step 6: Final answer
    x = 45,728.53

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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.