Home / 51,738.95-71,419.25-30,235.70

Finding the Fourth Proportional to 51,738.95, 71,419.25 and 30,235.70

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Solution

The fourth proportional to 51,738.95, 71,419.25 and 30,235.70 is: 41,736.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,738.95 : 71,419.25 = 30,235.70 : x
  2. Step 2: Convert to fraction form
    51,738.95/71,419.25 = 30,235.70/x
  3. Step 3: Cross multiply
    51,738.95x = 71,419.25 × 30,235.70
  4. Step 4: Simplify right side
    51,738.95x = 2,159,410,735.72
  5. Step 5: Solve for x
    x = 2,159,410,735.72/51,738.95
  6. Step 6: Final answer
    x = 41,736.66

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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.