Finding the Fourth Proportional to 79,782.94, 119,694.92 and 29,863.76
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Solution
The fourth proportional to 79,782.94, 119,694.92 and 29,863.76 is: 44,803.31
Step by Step Solution
- Step 1: Write the proportion equation
79,782.94 : 119,694.92 = 29,863.76 : x - Step 2: Convert to fraction form
79,782.94/119,694.92 = 29,863.76/x - Step 3: Cross multiply
79,782.94x = 119,694.92 × 29,863.76 - Step 4: Simplify right side
79,782.94x = 3,574,539,616.31 - Step 5: Solve for x
x = 3,574,539,616.31/79,782.94 - Step 6: Final answer
x = 44,803.31
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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.