Home / 54,403.18-81,528.16-43,260.42

Finding the Fourth Proportional to 54,403.18, 81,528.16 and 43,260.42

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Solution

The fourth proportional to 54,403.18, 81,528.16 and 43,260.42 is: 64,829.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,403.18 : 81,528.16 = 43,260.42 : x
  2. Step 2: Convert to fraction form
    54,403.18/81,528.16 = 43,260.42/x
  3. Step 3: Cross multiply
    54,403.18x = 81,528.16 × 43,260.42
  4. Step 4: Simplify right side
    54,403.18x = 3,526,942,443.43
  5. Step 5: Solve for x
    x = 3,526,942,443.43/54,403.18
  6. Step 6: Final answer
    x = 64,829.71

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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.