Home / 54,562.60-81,845.48-21,281.32

Finding the Fourth Proportional to 54,562.60, 81,845.48 and 21,281.32

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Solution

The fourth proportional to 54,562.60, 81,845.48 and 21,281.32 is: 31,922.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,562.60 : 81,845.48 = 21,281.32 : x
  2. Step 2: Convert to fraction form
    54,562.60/81,845.48 = 21,281.32/x
  3. Step 3: Cross multiply
    54,562.60x = 81,845.48 × 21,281.32
  4. Step 4: Simplify right side
    54,562.60x = 1,741,779,850.43
  5. Step 5: Solve for x
    x = 1,741,779,850.43/54,562.60
  6. Step 6: Final answer
    x = 31,922.60

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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.