Home / 54,013.53-80,971.30-18,934.05

Finding the Fourth Proportional to 54,013.53, 80,971.30 and 18,934.05

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Solution

The fourth proportional to 54,013.53, 80,971.30 and 18,934.05 is: 28,383.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,013.53 : 80,971.30 = 18,934.05 : x
  2. Step 2: Convert to fraction form
    54,013.53/80,971.30 = 18,934.05/x
  3. Step 3: Cross multiply
    54,013.53x = 80,971.30 × 18,934.05
  4. Step 4: Simplify right side
    54,013.53x = 1,533,114,863.57
  5. Step 5: Solve for x
    x = 1,533,114,863.57/54,013.53
  6. Step 6: Final answer
    x = 28,383.90

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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.