Finding the Fourth Proportional to 79,313.90, 118,981.79 and 46,049.63
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Solution
The fourth proportional to 79,313.90, 118,981.79 and 46,049.63 is: 69,080.80
Step by Step Solution
- Step 1: Write the proportion equation
79,313.90 : 118,981.79 = 46,049.63 : x - Step 2: Convert to fraction form
79,313.90/118,981.79 = 46,049.63/x - Step 3: Cross multiply
79,313.90x = 118,981.79 × 46,049.63 - Step 4: Simplify right side
79,313.90x = 5,479,067,406.24 - Step 5: Solve for x
x = 5,479,067,406.24/79,313.90 - Step 6: Final answer
x = 69,080.80
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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.