Home / 54,260.46-81,415-43,131.06

Finding the Fourth Proportional to 54,260.46, 81,415 and 43,131.06

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Solution

The fourth proportional to 54,260.46, 81,415 and 43,131.06 is: 64,715.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,260.46 : 81,415 = 43,131.06 : x
  2. Step 2: Convert to fraction form
    54,260.46/81,415 = 43,131.06/x
  3. Step 3: Cross multiply
    54,260.46x = 81,415 × 43,131.06
  4. Step 4: Simplify right side
    54,260.46x = 3,511,515,249.90
  5. Step 5: Solve for x
    x = 3,511,515,249.90/54,260.46
  6. Step 6: Final answer
    x = 64,715.91

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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.