Finding the Fourth Proportional to 76,991.22, 106,211.34 and 48,296.70
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Solution
The fourth proportional to 76,991.22, 106,211.34 and 48,296.70 is: 66,626.52
Step by Step Solution
- Step 1: Write the proportion equation
76,991.22 : 106,211.34 = 48,296.70 : x - Step 2: Convert to fraction form
76,991.22/106,211.34 = 48,296.70/x - Step 3: Cross multiply
76,991.22x = 106,211.34 × 48,296.70 - Step 4: Simplify right side
76,991.22x = 5,129,657,224.58 - Step 5: Solve for x
x = 5,129,657,224.58/76,991.22 - Step 6: Final answer
x = 66,626.52
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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.