Finding the Fourth Proportional to 79,396.80, 118,922.40 and 48,177.60
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Solution
The fourth proportional to 79,396.80, 118,922.40 and 48,177.60 is: 72,161.55
Step by Step Solution
- Step 1: Write the proportion equation
79,396.80 : 118,922.40 = 48,177.60 : x - Step 2: Convert to fraction form
79,396.80/118,922.40 = 48,177.60/x - Step 3: Cross multiply
79,396.80x = 118,922.40 × 48,177.60 - Step 4: Simplify right side
79,396.80x = 5,729,395,818.24 - Step 5: Solve for x
x = 5,729,395,818.24/79,396.80 - Step 6: Final answer
x = 72,161.55
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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.