Home / 54,228.87-81,335.61-20,964.60

Finding the Fourth Proportional to 54,228.87, 81,335.61 and 20,964.60

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Solution

The fourth proportional to 54,228.87, 81,335.61 and 20,964.60 is: 31,443.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,228.87 : 81,335.61 = 20,964.60 : x
  2. Step 2: Convert to fraction form
    54,228.87/81,335.61 = 20,964.60/x
  3. Step 3: Cross multiply
    54,228.87x = 81,335.61 × 20,964.60
  4. Step 4: Simplify right side
    54,228.87x = 1,705,168,529.41
  5. Step 5: Solve for x
    x = 1,705,168,529.41/54,228.87
  6. Step 6: Final answer
    x = 31,443.93

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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.