Finding the Fourth Proportional to 98,379.10, 135,760.17 and 55,360.99
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Solution
The fourth proportional to 98,379.10, 135,760.17 and 55,360.99 is: 76,396.48
Step by Step Solution
- Step 1: Write the proportion equation
98,379.10 : 135,760.17 = 55,360.99 : x - Step 2: Convert to fraction form
98,379.10/135,760.17 = 55,360.99/x - Step 3: Cross multiply
98,379.10x = 135,760.17 × 55,360.99 - Step 4: Simplify right side
98,379.10x = 7,515,817,413.77 - Step 5: Solve for x
x = 7,515,817,413.77/98,379.10 - Step 6: Final answer
x = 76,396.48
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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.