Home / 51,629.25-71,249.45-28,969.88

Finding the Fourth Proportional to 51,629.25, 71,249.45 and 28,969.88

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Solution

The fourth proportional to 51,629.25, 71,249.45 and 28,969.88 is: 39,979.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,629.25 : 71,249.45 = 28,969.88 : x
  2. Step 2: Convert to fraction form
    51,629.25/71,249.45 = 28,969.88/x
  3. Step 3: Cross multiply
    51,629.25x = 71,249.45 × 28,969.88
  4. Step 4: Simplify right side
    51,629.25x = 2,064,087,797.34
  5. Step 5: Solve for x
    x = 2,064,087,797.34/51,629.25
  6. Step 6: Final answer
    x = 39,979.04

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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.