Home / 51,428.56-70,961.82-30,200.08

Finding the Fourth Proportional to 51,428.56, 70,961.82 and 30,200.08

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Solution

The fourth proportional to 51,428.56, 70,961.82 and 30,200.08 is: 41,670.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,428.56 : 70,961.82 = 30,200.08 : x
  2. Step 2: Convert to fraction form
    51,428.56/70,961.82 = 30,200.08/x
  3. Step 3: Cross multiply
    51,428.56x = 70,961.82 × 30,200.08
  4. Step 4: Simplify right side
    51,428.56x = 2,143,052,640.95
  5. Step 5: Solve for x
    x = 2,143,052,640.95/51,428.56
  6. Step 6: Final answer
    x = 41,670.48

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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.