Home / 78,351.48-117,533.30-22,190.67

Finding the Fourth Proportional to 78,351.48, 117,533.30 and 22,190.67

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Solution

The fourth proportional to 78,351.48, 117,533.30 and 22,190.67 is: 33,287.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,351.48 : 117,533.30 = 22,190.67 : x
  2. Step 2: Convert to fraction form
    78,351.48/117,533.30 = 22,190.67/x
  3. Step 3: Cross multiply
    78,351.48x = 117,533.30 × 22,190.67
  4. Step 4: Simplify right side
    78,351.48x = 2,608,142,563.36
  5. Step 5: Solve for x
    x = 2,608,142,563.36/78,351.48
  6. Step 6: Final answer
    x = 33,287.73

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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.