Home / 54,255.86-81,354.06-16,805.54

Finding the Fourth Proportional to 54,255.86, 81,354.06 and 16,805.54

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Solution

The fourth proportional to 54,255.86, 81,354.06 and 16,805.54 is: 25,199.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,255.86 : 81,354.06 = 16,805.54 : x
  2. Step 2: Convert to fraction form
    54,255.86/81,354.06 = 16,805.54/x
  3. Step 3: Cross multiply
    54,255.86x = 81,354.06 × 16,805.54
  4. Step 4: Simplify right side
    54,255.86x = 1,367,198,852.38
  5. Step 5: Solve for x
    x = 1,367,198,852.38/54,255.86
  6. Step 6: Final answer
    x = 25,199.10

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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.