Home / 76,181.32-114,240.39-28,788.22

Finding the Fourth Proportional to 76,181.32, 114,240.39 and 28,788.22

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Solution

The fourth proportional to 76,181.32, 114,240.39 and 28,788.22 is: 43,170.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,181.32 : 114,240.39 = 28,788.22 : x
  2. Step 2: Convert to fraction form
    76,181.32/114,240.39 = 28,788.22/x
  3. Step 3: Cross multiply
    76,181.32x = 114,240.39 × 28,788.22
  4. Step 4: Simplify right side
    76,181.32x = 3,288,777,480.21
  5. Step 5: Solve for x
    x = 3,288,777,480.21/76,181.32
  6. Step 6: Final answer
    x = 43,170.39

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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.