Home / 54,768.21-82,131.65-19,218.52

Finding the Fourth Proportional to 54,768.21, 82,131.65 and 19,218.52

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Solution

The fourth proportional to 54,768.21, 82,131.65 and 19,218.52 is: 28,820.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,768.21 : 82,131.65 = 19,218.52 : x
  2. Step 2: Convert to fraction form
    54,768.21/82,131.65 = 19,218.52/x
  3. Step 3: Cross multiply
    54,768.21x = 82,131.65 × 19,218.52
  4. Step 4: Simplify right side
    54,768.21x = 1,578,448,758.16
  5. Step 5: Solve for x
    x = 1,578,448,758.16/54,768.21
  6. Step 6: Final answer
    x = 28,820.53

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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.