Finding the Fourth Proportional to 79,114.24, 109,176.70 and 42,814.84
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Solution
The fourth proportional to 79,114.24, 109,176.70 and 42,814.84 is: 59,083.96
Step by Step Solution
- Step 1: Write the proportion equation
79,114.24 : 109,176.70 = 42,814.84 : x - Step 2: Convert to fraction form
79,114.24/109,176.70 = 42,814.84/x - Step 3: Cross multiply
79,114.24x = 109,176.70 × 42,814.84 - Step 4: Simplify right side
79,114.24x = 4,674,382,942.23 - Step 5: Solve for x
x = 4,674,382,942.23/79,114.24 - Step 6: Final answer
x = 59,083.96
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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.