Finding the Fourth Proportional to 78,755.76, 108,703.62 and 44,784.09
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Solution
The fourth proportional to 78,755.76, 108,703.62 and 44,784.09 is: 61,813.80
Step by Step Solution
- Step 1: Write the proportion equation
78,755.76 : 108,703.62 = 44,784.09 : x - Step 2: Convert to fraction form
78,755.76/108,703.62 = 44,784.09/x - Step 3: Cross multiply
78,755.76x = 108,703.62 × 44,784.09 - Step 4: Simplify right side
78,755.76x = 4,868,192,701.41 - Step 5: Solve for x
x = 4,868,192,701.41/78,755.76 - Step 6: Final answer
x = 61,813.80
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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.