Home / 78,245.54-117,352.60-50,080.48

Finding the Fourth Proportional to 78,245.54, 117,352.60 and 50,080.48

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Solution

The fourth proportional to 78,245.54, 117,352.60 and 50,080.48 is: 75,110.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,245.54 : 117,352.60 = 50,080.48 : x
  2. Step 2: Convert to fraction form
    78,245.54/117,352.60 = 50,080.48/x
  3. Step 3: Cross multiply
    78,245.54x = 117,352.60 × 50,080.48
  4. Step 4: Simplify right side
    78,245.54x = 5,877,074,118.67
  5. Step 5: Solve for x
    x = 5,877,074,118.67/78,245.54
  6. Step 6: Final answer
    x = 75,110.66

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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.