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Finding the Fourth Proportional to 80,722.44, 121,110.88 and 35,737.60

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Solution

The fourth proportional to 80,722.44, 121,110.88 and 35,737.60 is: 53,618.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,722.44 : 121,110.88 = 35,737.60 : x
  2. Step 2: Convert to fraction form
    80,722.44/121,110.88 = 35,737.60/x
  3. Step 3: Cross multiply
    80,722.44x = 121,110.88 × 35,737.60
  4. Step 4: Simplify right side
    80,722.44x = 4,328,212,185.09
  5. Step 5: Solve for x
    x = 4,328,212,185.09/80,722.44
  6. Step 6: Final answer
    x = 53,618.45

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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.