Finding the Fourth Proportional to 79,829.60, 119,748.08 and 27,239.60
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Solution
The fourth proportional to 79,829.60, 119,748.08 and 27,239.60 is: 40,860.66
Step by Step Solution
- Step 1: Write the proportion equation
79,829.60 : 119,748.08 = 27,239.60 : x - Step 2: Convert to fraction form
79,829.60/119,748.08 = 27,239.60/x - Step 3: Cross multiply
79,829.60x = 119,748.08 × 27,239.60 - Step 4: Simplify right side
79,829.60x = 3,261,889,799.97 - Step 5: Solve for x
x = 3,261,889,799.97/79,829.60 - Step 6: Final answer
x = 40,860.66
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1.5x scale
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.