Home / 80,680.88-121,037.74-28,094.48

Finding the Fourth Proportional to 80,680.88, 121,037.74 and 28,094.48

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Solution

The fourth proportional to 80,680.88, 121,037.74 and 28,094.48 is: 42,147.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,680.88 : 121,037.74 = 28,094.48 : x
  2. Step 2: Convert to fraction form
    80,680.88/121,037.74 = 28,094.48/x
  3. Step 3: Cross multiply
    80,680.88x = 121,037.74 × 28,094.48
  4. Step 4: Simplify right side
    80,680.88x = 3,400,492,365.68
  5. Step 5: Solve for x
    x = 3,400,492,365.68/80,680.88
  6. Step 6: Final answer
    x = 42,147.44

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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.