Finding the Fourth Proportional to 80,928.24, 121,392.36 and 34,181.52
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Solution
The fourth proportional to 80,928.24, 121,392.36 and 34,181.52 is: 51,272.28
Step by Step Solution
- Step 1: Write the proportion equation
80,928.24 : 121,392.36 = 34,181.52 : x - Step 2: Convert to fraction form
80,928.24/121,392.36 = 34,181.52/x - Step 3: Cross multiply
80,928.24x = 121,392.36 × 34,181.52 - Step 4: Simplify right side
80,928.24x = 4,149,375,381.19 - Step 5: Solve for x
x = 4,149,375,381.19/80,928.24 - Step 6: Final answer
x = 51,272.28
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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.