Home / 51,138.24-76,705.54-17,858.18

Finding the Fourth Proportional to 51,138.24, 76,705.54 and 17,858.18

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Solution

The fourth proportional to 51,138.24, 76,705.54 and 17,858.18 is: 26,786.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,138.24 : 76,705.54 = 17,858.18 : x
  2. Step 2: Convert to fraction form
    51,138.24/76,705.54 = 17,858.18/x
  3. Step 3: Cross multiply
    51,138.24x = 76,705.54 × 17,858.18
  4. Step 4: Simplify right side
    51,138.24x = 1,369,820,912.14
  5. Step 5: Solve for x
    x = 1,369,820,912.14/51,138.24
  6. Step 6: Final answer
    x = 26,786.63

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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.