Home / 54,318.20-81,485.40-19,255.10

Finding the Fourth Proportional to 54,318.20, 81,485.40 and 19,255.10

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Solution

The fourth proportional to 54,318.20, 81,485.40 and 19,255.10 is: 28,885.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,318.20 : 81,485.40 = 19,255.10 : x
  2. Step 2: Convert to fraction form
    54,318.20/81,485.40 = 19,255.10/x
  3. Step 3: Cross multiply
    54,318.20x = 81,485.40 × 19,255.10
  4. Step 4: Simplify right side
    54,318.20x = 1,569,009,525.54
  5. Step 5: Solve for x
    x = 1,569,009,525.54/54,318.20
  6. Step 6: Final answer
    x = 28,885.52

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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.