Finding the Fourth Proportional to 78,413.93, 108,207.70 and 44,421.73
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Solution
The fourth proportional to 78,413.93, 108,207.70 and 44,421.73 is: 61,299.99
Step by Step Solution
- Step 1: Write the proportion equation
78,413.93 : 108,207.70 = 44,421.73 : x - Step 2: Convert to fraction form
78,413.93/108,207.70 = 44,421.73/x - Step 3: Cross multiply
78,413.93x = 108,207.70 × 44,421.73 - Step 4: Simplify right side
78,413.93x = 4,806,773,101.62 - Step 5: Solve for x
x = 4,806,773,101.62/78,413.93 - Step 6: Final answer
x = 61,299.99
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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.