Home / 51,361.29-77,046.80-20,189.25

Finding the Fourth Proportional to 51,361.29, 77,046.80 and 20,189.25

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Solution

The fourth proportional to 51,361.29, 77,046.80 and 20,189.25 is: 30,285.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,361.29 : 77,046.80 = 20,189.25 : x
  2. Step 2: Convert to fraction form
    51,361.29/77,046.80 = 20,189.25/x
  3. Step 3: Cross multiply
    51,361.29x = 77,046.80 × 20,189.25
  4. Step 4: Simplify right side
    51,361.29x = 1,555,517,005.95
  5. Step 5: Solve for x
    x = 1,555,517,005.95/51,361.29
  6. Step 6: Final answer
    x = 30,285.79

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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.