Home / 81,979.35-122,969.05-63,286.67

Finding the Fourth Proportional to 81,979.35, 122,969.05 and 63,286.67

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Solution

The fourth proportional to 81,979.35, 122,969.05 and 63,286.67 is: 94,930.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,979.35 : 122,969.05 = 63,286.67 : x
  2. Step 2: Convert to fraction form
    81,979.35/122,969.05 = 63,286.67/x
  3. Step 3: Cross multiply
    81,979.35x = 122,969.05 × 63,286.67
  4. Step 4: Simplify right side
    81,979.35x = 7,782,301,836.77
  5. Step 5: Solve for x
    x = 7,782,301,836.77/81,979.35
  6. Step 6: Final answer
    x = 94,930.03

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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.