Home / 54,680.82-82,021.25-42,219.06

Finding the Fourth Proportional to 54,680.82, 82,021.25 and 42,219.06

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Solution

The fourth proportional to 54,680.82, 82,021.25 and 42,219.06 is: 63,328.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,680.82 : 82,021.25 = 42,219.06 : x
  2. Step 2: Convert to fraction form
    54,680.82/82,021.25 = 42,219.06/x
  3. Step 3: Cross multiply
    54,680.82x = 82,021.25 × 42,219.06
  4. Step 4: Simplify right side
    54,680.82x = 3,462,860,075.03
  5. Step 5: Solve for x
    x = 3,462,860,075.03/54,680.82
  6. Step 6: Final answer
    x = 63,328.61

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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.