Finding the Fourth Proportional to 128,580.56, 192,883.48 and 44,329.63
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Solution
The fourth proportional to 128,580.56, 192,883.48 and 44,329.63 is: 66,498.80
Step by Step Solution
- Step 1: Write the proportion equation
128,580.56 : 192,883.48 = 44,329.63 : x - Step 2: Convert to fraction form
128,580.56/192,883.48 = 44,329.63/x - Step 3: Cross multiply
128,580.56x = 192,883.48 × 44,329.63 - Step 4: Simplify right side
128,580.56x = 8,550,453,070.14 - Step 5: Solve for x
x = 8,550,453,070.14/128,580.56 - Step 6: Final answer
x = 66,498.80
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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.