Finding the Fourth Proportional to 88,413.09, 122,011.62 and 48,128.01
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Solution
The fourth proportional to 88,413.09, 122,011.62 and 48,128.01 is: 66,417.50
Step by Step Solution
- Step 1: Write the proportion equation
88,413.09 : 122,011.62 = 48,128.01 : x - Step 2: Convert to fraction form
88,413.09/122,011.62 = 48,128.01/x - Step 3: Cross multiply
88,413.09x = 122,011.62 × 48,128.01 - Step 4: Simplify right side
88,413.09x = 5,872,176,467.48 - Step 5: Solve for x
x = 5,872,176,467.48/88,413.09 - Step 6: Final answer
x = 66,417.50
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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.