Home / 54,021.08-81,067.86-18,960.84

Finding the Fourth Proportional to 54,021.08, 81,067.86 and 18,960.84

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Solution

The fourth proportional to 54,021.08, 81,067.86 and 18,960.84 is: 28,453.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,021.08 : 81,067.86 = 18,960.84 : x
  2. Step 2: Convert to fraction form
    54,021.08/81,067.86 = 18,960.84/x
  3. Step 3: Cross multiply
    54,021.08x = 81,067.86 × 18,960.84
  4. Step 4: Simplify right side
    54,021.08x = 1,537,114,722.60
  5. Step 5: Solve for x
    x = 1,537,114,722.60/54,021.08
  6. Step 6: Final answer
    x = 28,453.98

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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.