Home / 54,219.90-81,325.80-22,621.80

Finding the Fourth Proportional to 54,219.90, 81,325.80 and 22,621.80

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Solution

The fourth proportional to 54,219.90, 81,325.80 and 22,621.80 is: 33,931.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,219.90 : 81,325.80 = 22,621.80 : x
  2. Step 2: Convert to fraction form
    54,219.90/81,325.80 = 22,621.80/x
  3. Step 3: Cross multiply
    54,219.90x = 81,325.80 × 22,621.80
  4. Step 4: Simplify right side
    54,219.90x = 1,839,735,982.44
  5. Step 5: Solve for x
    x = 1,839,735,982.44/54,219.90
  6. Step 6: Final answer
    x = 33,931.01

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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.