Home / 54,912.20-82,368.30-13,359.20

Finding the Fourth Proportional to 54,912.20, 82,368.30 and 13,359.20

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Solution

The fourth proportional to 54,912.20, 82,368.30 and 13,359.20 is: 20,038.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,912.20 : 82,368.30 = 13,359.20 : x
  2. Step 2: Convert to fraction form
    54,912.20/82,368.30 = 13,359.20/x
  3. Step 3: Cross multiply
    54,912.20x = 82,368.30 × 13,359.20
  4. Step 4: Simplify right side
    54,912.20x = 1,100,374,593.36
  5. Step 5: Solve for x
    x = 1,100,374,593.36/54,912.20
  6. Step 6: Final answer
    x = 20,038.80

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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.