Home / 53,918.69-80,856.97-20,627.69

Finding the Fourth Proportional to 53,918.69, 80,856.97 and 20,627.69

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Solution

The fourth proportional to 53,918.69, 80,856.97 and 20,627.69 is: 30,933.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,918.69 : 80,856.97 = 20,627.69 : x
  2. Step 2: Convert to fraction form
    53,918.69/80,856.97 = 20,627.69/x
  3. Step 3: Cross multiply
    53,918.69x = 80,856.97 × 20,627.69
  4. Step 4: Simplify right side
    53,918.69x = 1,667,892,511.50
  5. Step 5: Solve for x
    x = 1,667,892,511.50/53,918.69
  6. Step 6: Final answer
    x = 30,933.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.