Home / 76,928.68-106,121.22-66,834.44

Finding the Fourth Proportional to 76,928.68, 106,121.22 and 66,834.44

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Solution

The fourth proportional to 76,928.68, 106,121.22 and 66,834.44 is: 92,196.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,928.68 : 106,121.22 = 66,834.44 : x
  2. Step 2: Convert to fraction form
    76,928.68/106,121.22 = 66,834.44/x
  3. Step 3: Cross multiply
    76,928.68x = 106,121.22 × 66,834.44
  4. Step 4: Simplify right side
    76,928.68x = 7,092,552,310.82
  5. Step 5: Solve for x
    x = 7,092,552,310.82/76,928.68
  6. Step 6: Final answer
    x = 92,196.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.