Finding the Fourth Proportional to 79,717.80, 119,585.40 and 29,821.80
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Solution
The fourth proportional to 79,717.80, 119,585.40 and 29,821.80 is: 44,735.95
Step by Step Solution
- Step 1: Write the proportion equation
79,717.80 : 119,585.40 = 29,821.80 : x - Step 2: Convert to fraction form
79,717.80/119,585.40 = 29,821.80/x - Step 3: Cross multiply
79,717.80x = 119,585.40 × 29,821.80 - Step 4: Simplify right side
79,717.80x = 3,566,251,881.72 - Step 5: Solve for x
x = 3,566,251,881.72/79,717.80 - Step 6: Final answer
x = 44,735.95
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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.