Finding the Fourth Proportional to 98,413.36, 147,643.48 and 31,853.50
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Solution
The fourth proportional to 98,413.36, 147,643.48 and 31,853.50 is: 47,787.84
Step by Step Solution
- Step 1: Write the proportion equation
98,413.36 : 147,643.48 = 31,853.50 : x - Step 2: Convert to fraction form
98,413.36/147,643.48 = 31,853.50/x - Step 3: Cross multiply
98,413.36x = 147,643.48 × 31,853.50 - Step 4: Simplify right side
98,413.36x = 4,702,961,879.65 - Step 5: Solve for x
x = 4,702,961,879.65/98,413.36 - Step 6: Final answer
x = 47,787.84
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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.