Finding the Fourth Proportional to 79,257.09, 118,811.21 and 26,629.77
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Solution
The fourth proportional to 79,257.09, 118,811.21 and 26,629.77 is: 39,919.65
Step by Step Solution
- Step 1: Write the proportion equation
79,257.09 : 118,811.21 = 26,629.77 : x - Step 2: Convert to fraction form
79,257.09/118,811.21 = 26,629.77/x - Step 3: Cross multiply
79,257.09x = 118,811.21 × 26,629.77 - Step 4: Simplify right side
79,257.09x = 3,163,915,262.30 - Step 5: Solve for x
x = 3,163,915,262.30/79,257.09 - Step 6: Final answer
x = 39,919.65
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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.