Home / 54,250.44-81,388.08-20,970.78

Finding the Fourth Proportional to 54,250.44, 81,388.08 and 20,970.78

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Solution

The fourth proportional to 54,250.44, 81,388.08 and 20,970.78 is: 31,460.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,250.44 : 81,388.08 = 20,970.78 : x
  2. Step 2: Convert to fraction form
    54,250.44/81,388.08 = 20,970.78/x
  3. Step 3: Cross multiply
    54,250.44x = 81,388.08 × 20,970.78
  4. Step 4: Simplify right side
    54,250.44x = 1,706,771,520.30
  5. Step 5: Solve for x
    x = 1,706,771,520.30/54,250.44
  6. Step 6: Final answer
    x = 31,460.97

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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.