Finding the Fourth Proportional to 79,553.96, 109,788.42 and 49,349.02
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Solution
The fourth proportional to 79,553.96, 109,788.42 and 49,349.02 is: 68,104.09
Step by Step Solution
- Step 1: Write the proportion equation
79,553.96 : 109,788.42 = 49,349.02 : x - Step 2: Convert to fraction form
79,553.96/109,788.42 = 49,349.02/x - Step 3: Cross multiply
79,553.96x = 109,788.42 × 49,349.02 - Step 4: Simplify right side
79,553.96x = 5,417,950,413.13 - Step 5: Solve for x
x = 5,417,950,413.13/79,553.96 - Step 6: Final answer
x = 68,104.09
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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.