Home / 54,453.96-81,689.61-18,926.16

Finding the Fourth Proportional to 54,453.96, 81,689.61 and 18,926.16

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Solution

The fourth proportional to 54,453.96, 81,689.61 and 18,926.16 is: 28,392.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,453.96 : 81,689.61 = 18,926.16 : x
  2. Step 2: Convert to fraction form
    54,453.96/81,689.61 = 18,926.16/x
  3. Step 3: Cross multiply
    54,453.96x = 81,689.61 × 18,926.16
  4. Step 4: Simplify right side
    54,453.96x = 1,546,070,629.20
  5. Step 5: Solve for x
    x = 1,546,070,629.20/54,453.96
  6. Step 6: Final answer
    x = 28,392.25

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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.