Home / 54,154.41-81,223.40-18,621.12

Finding the Fourth Proportional to 54,154.41, 81,223.40 and 18,621.12

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Solution

The fourth proportional to 54,154.41, 81,223.40 and 18,621.12 is: 27,928.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,154.41 : 81,223.40 = 18,621.12 : x
  2. Step 2: Convert to fraction form
    54,154.41/81,223.40 = 18,621.12/x
  3. Step 3: Cross multiply
    54,154.41x = 81,223.40 × 18,621.12
  4. Step 4: Simplify right side
    54,154.41x = 1,512,470,585.10
  5. Step 5: Solve for x
    x = 1,512,470,585.10/54,154.41
  6. Step 6: Final answer
    x = 27,928.85

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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.