Finding the Fourth Proportional to 80,381.12, 110,925.36 and 44,571.12
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Solution
The fourth proportional to 80,381.12, 110,925.36 and 44,571.12 is: 61,507.82
Step by Step Solution
- Step 1: Write the proportion equation
80,381.12 : 110,925.36 = 44,571.12 : x - Step 2: Convert to fraction form
80,381.12/110,925.36 = 44,571.12/x - Step 3: Cross multiply
80,381.12x = 110,925.36 × 44,571.12 - Step 4: Simplify right side
80,381.12x = 4,944,067,531.60 - Step 5: Solve for x
x = 4,944,067,531.60/80,381.12 - Step 6: Final answer
x = 61,507.82
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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.