Home / 54,487.92-81,741.60-21,226.08

Finding the Fourth Proportional to 54,487.92, 81,741.60 and 21,226.08

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Solution

The fourth proportional to 54,487.92, 81,741.60 and 21,226.08 is: 31,842.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,487.92 : 81,741.60 = 21,226.08 : x
  2. Step 2: Convert to fraction form
    54,487.92/81,741.60 = 21,226.08/x
  3. Step 3: Cross multiply
    54,487.92x = 81,741.60 × 21,226.08
  4. Step 4: Simplify right side
    54,487.92x = 1,735,053,740.93
  5. Step 5: Solve for x
    x = 1,735,053,740.93/54,487.92
  6. Step 6: Final answer
    x = 31,842.91

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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.