Finding the Fourth Proportional to 97,571.40, 134,651.16 and 55,128.96
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Solution
The fourth proportional to 97,571.40, 134,651.16 and 55,128.96 is: 76,079.45
Step by Step Solution
- Step 1: Write the proportion equation
97,571.40 : 134,651.16 = 55,128.96 : x - Step 2: Convert to fraction form
97,571.40/134,651.16 = 55,128.96/x - Step 3: Cross multiply
97,571.40x = 134,651.16 × 55,128.96 - Step 4: Simplify right side
97,571.40x = 7,423,178,413.59 - Step 5: Solve for x
x = 7,423,178,413.59/97,571.40 - Step 6: Final answer
x = 76,079.45
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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.