Home / 50,825.12-70,137.60-28,163.90

Finding the Fourth Proportional to 50,825.12, 70,137.60 and 28,163.90

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Solution

The fourth proportional to 50,825.12, 70,137.60 and 28,163.90 is: 38,865.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,825.12 : 70,137.60 = 28,163.90 : x
  2. Step 2: Convert to fraction form
    50,825.12/70,137.60 = 28,163.90/x
  3. Step 3: Cross multiply
    50,825.12x = 70,137.60 × 28,163.90
  4. Step 4: Simplify right side
    50,825.12x = 1,975,348,352.64
  5. Step 5: Solve for x
    x = 1,975,348,352.64/50,825.12
  6. Step 6: Final answer
    x = 38,865.59

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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.