Home / 52,078.78-71,868.90-28,205.38

Finding the Fourth Proportional to 52,078.78, 71,868.90 and 28,205.38

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Solution

The fourth proportional to 52,078.78, 71,868.90 and 28,205.38 is: 38,923.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,078.78 : 71,868.90 = 28,205.38 : x
  2. Step 2: Convert to fraction form
    52,078.78/71,868.90 = 28,205.38/x
  3. Step 3: Cross multiply
    52,078.78x = 71,868.90 × 28,205.38
  4. Step 4: Simplify right side
    52,078.78x = 2,027,089,634.68
  5. Step 5: Solve for x
    x = 2,027,089,634.68/52,078.78
  6. Step 6: Final answer
    x = 38,923.52

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1.5x scale

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.