Finding the Fourth Proportional to 80,960.52, 121,357.62 and 31,027.08
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Solution
The fourth proportional to 80,960.52, 121,357.62 and 31,027.08 is: 46,508.75
Step by Step Solution
- Step 1: Write the proportion equation
80,960.52 : 121,357.62 = 31,027.08 : x - Step 2: Convert to fraction form
80,960.52/121,357.62 = 31,027.08/x - Step 3: Cross multiply
80,960.52x = 121,357.62 × 31,027.08 - Step 4: Simplify right side
80,960.52x = 3,765,372,584.35 - Step 5: Solve for x
x = 3,765,372,584.35/80,960.52 - Step 6: Final answer
x = 46,508.75
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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.