Home / 51,608.78-71,218.77-28,638.44

Finding the Fourth Proportional to 51,608.78, 71,218.77 and 28,638.44

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Solution

The fourth proportional to 51,608.78, 71,218.77 and 28,638.44 is: 39,520.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,608.78 : 71,218.77 = 28,638.44 : x
  2. Step 2: Convert to fraction form
    51,608.78/71,218.77 = 28,638.44/x
  3. Step 3: Cross multiply
    51,608.78x = 71,218.77 × 28,638.44
  4. Step 4: Simplify right side
    51,608.78x = 2,039,594,471.52
  5. Step 5: Solve for x
    x = 2,039,594,471.52/51,608.78
  6. Step 6: Final answer
    x = 39,520.30

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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.