Home / 54,169.80-81,188.15-30,427.43

Finding the Fourth Proportional to 54,169.80, 81,188.15 and 30,427.43

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Solution

The fourth proportional to 54,169.80, 81,188.15 and 30,427.43 is: 45,603.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,169.80 : 81,188.15 = 30,427.43 : x
  2. Step 2: Convert to fraction form
    54,169.80/81,188.15 = 30,427.43/x
  3. Step 3: Cross multiply
    54,169.80x = 81,188.15 × 30,427.43
  4. Step 4: Simplify right side
    54,169.80x = 2,470,346,750.95
  5. Step 5: Solve for x
    x = 2,470,346,750.95/54,169.80
  6. Step 6: Final answer
    x = 45,603.76

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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.