Home / 54,057.02-81,029.88-20,768.06

Finding the Fourth Proportional to 54,057.02, 81,029.88 and 20,768.06

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Solution

The fourth proportional to 54,057.02, 81,029.88 and 20,768.06 is: 31,130.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,057.02 : 81,029.88 = 20,768.06 : x
  2. Step 2: Convert to fraction form
    54,057.02/81,029.88 = 20,768.06/x
  3. Step 3: Cross multiply
    54,057.02x = 81,029.88 × 20,768.06
  4. Step 4: Simplify right side
    54,057.02x = 1,682,833,409.63
  5. Step 5: Solve for x
    x = 1,682,833,409.63/54,057.02
  6. Step 6: Final answer
    x = 31,130.71

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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.