Home / 54,310.23-81,454.20-20,564.60

Finding the Fourth Proportional to 54,310.23, 81,454.20 and 20,564.60

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Solution

The fourth proportional to 54,310.23, 81,454.20 and 20,564.60 is: 30,842.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,310.23 : 81,454.20 = 20,564.60 : x
  2. Step 2: Convert to fraction form
    54,310.23/81,454.20 = 20,564.60/x
  3. Step 3: Cross multiply
    54,310.23x = 81,454.20 × 20,564.60
  4. Step 4: Simplify right side
    54,310.23x = 1,675,073,041.32
  5. Step 5: Solve for x
    x = 1,675,073,041.32/54,310.23
  6. Step 6: Final answer
    x = 30,842.68

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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.