Finding the Fourth Proportional to 79,600.12, 109,845.05 and 43,787.99
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Solution
The fourth proportional to 79,600.12, 109,845.05 and 43,787.99 is: 60,425.71
Step by Step Solution
- Step 1: Write the proportion equation
79,600.12 : 109,845.05 = 43,787.99 : x - Step 2: Convert to fraction form
79,600.12/109,845.05 = 43,787.99/x - Step 3: Cross multiply
79,600.12x = 109,845.05 × 43,787.99 - Step 4: Simplify right side
79,600.12x = 4,809,894,006.62 - Step 5: Solve for x
x = 4,809,894,006.62/79,600.12 - Step 6: Final answer
x = 60,425.71
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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.