Home / 78,164.90-117,247.35-33,760.70

Finding the Fourth Proportional to 78,164.90, 117,247.35 and 33,760.70

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Solution

The fourth proportional to 78,164.90, 117,247.35 and 33,760.70 is: 50,641.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,164.90 : 117,247.35 = 33,760.70 : x
  2. Step 2: Convert to fraction form
    78,164.90/117,247.35 = 33,760.70/x
  3. Step 3: Cross multiply
    78,164.90x = 117,247.35 × 33,760.70
  4. Step 4: Simplify right side
    78,164.90x = 3,958,352,609.15
  5. Step 5: Solve for x
    x = 3,958,352,609.15/78,164.90
  6. Step 6: Final answer
    x = 50,641.05

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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.