Finding the Fourth Proportional to 86,211.26, 118,971.54 and 48,485.50
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Solution
The fourth proportional to 86,211.26, 118,971.54 and 48,485.50 is: 66,909.99
Step by Step Solution
- Step 1: Write the proportion equation
86,211.26 : 118,971.54 = 48,485.50 : x - Step 2: Convert to fraction form
86,211.26/118,971.54 = 48,485.50/x - Step 3: Cross multiply
86,211.26x = 118,971.54 × 48,485.50 - Step 4: Simplify right side
86,211.26x = 5,768,394,602.67 - Step 5: Solve for x
x = 5,768,394,602.67/86,211.26 - Step 6: Final answer
x = 66,909.99
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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.