Home / 54,234.87-81,355.20-16,820.79

Finding the Fourth Proportional to 54,234.87, 81,355.20 and 16,820.79

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Solution

The fourth proportional to 54,234.87, 81,355.20 and 16,820.79 is: 25,232.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,234.87 : 81,355.20 = 16,820.79 : x
  2. Step 2: Convert to fraction form
    54,234.87/81,355.20 = 16,820.79/x
  3. Step 3: Cross multiply
    54,234.87x = 81,355.20 × 16,820.79
  4. Step 4: Simplify right side
    54,234.87x = 1,368,458,734.61
  5. Step 5: Solve for x
    x = 1,368,458,734.61/54,234.87
  6. Step 6: Final answer
    x = 25,232.08

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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.