Home / 51,163.44-70,586.82-31,005.78

Finding the Fourth Proportional to 51,163.44, 70,586.82 and 31,005.78

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Solution

The fourth proportional to 51,163.44, 70,586.82 and 31,005.78 is: 42,776.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,163.44 : 70,586.82 = 31,005.78 : x
  2. Step 2: Convert to fraction form
    51,163.44/70,586.82 = 31,005.78/x
  3. Step 3: Cross multiply
    51,163.44x = 70,586.82 × 31,005.78
  4. Step 4: Simplify right side
    51,163.44x = 2,188,599,411.82
  5. Step 5: Solve for x
    x = 2,188,599,411.82/51,163.44
  6. Step 6: Final answer
    x = 42,776.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.