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Finding the Fourth Proportional to 54,309, 81,389.52 and 27,958.08

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Solution

The fourth proportional to 54,309, 81,389.52 and 27,958.08 is: 41,899.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,309 : 81,389.52 = 27,958.08 : x
  2. Step 2: Convert to fraction form
    54,309/81,389.52 = 27,958.08/x
  3. Step 3: Cross multiply
    54,309x = 81,389.52 × 27,958.08
  4. Step 4: Simplify right side
    54,309x = 2,275,494,711.32
  5. Step 5: Solve for x
    x = 2,275,494,711.32/54,309
  6. Step 6: Final answer
    x = 41,899.04

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1.5x scale

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.