Finding the Fourth Proportional to 76,932.11, 115,413.11 and 29,543.72
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Solution
The fourth proportional to 76,932.11, 115,413.11 and 29,543.72 is: 44,321.31
Step by Step Solution
- Step 1: Write the proportion equation
76,932.11 : 115,413.11 = 29,543.72 : x - Step 2: Convert to fraction form
76,932.11/115,413.11 = 29,543.72/x - Step 3: Cross multiply
76,932.11x = 115,413.11 × 29,543.72 - Step 4: Simplify right side
76,932.11x = 3,409,731,881.39 - Step 5: Solve for x
x = 3,409,731,881.39/76,932.11 - Step 6: Final answer
x = 44,321.31
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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.