Finding the Fourth Proportional to 79,116.89, 109,177.11 and 43,299.99
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Solution
The fourth proportional to 79,116.89, 109,177.11 and 43,299.99 is: 59,751.69
Step by Step Solution
- Step 1: Write the proportion equation
79,116.89 : 109,177.11 = 43,299.99 : x - Step 2: Convert to fraction form
79,116.89/109,177.11 = 43,299.99/x - Step 3: Cross multiply
79,116.89x = 109,177.11 × 43,299.99 - Step 4: Simplify right side
79,116.89x = 4,727,367,771.23 - Step 5: Solve for x
x = 4,727,367,771.23/79,116.89 - Step 6: Final answer
x = 59,751.69
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1.5x scale
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.