Finding the Fourth Proportional to 79,690.64, 119,524.18 and 29,764.48
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Solution
The fourth proportional to 79,690.64, 119,524.18 and 29,764.48 is: 44,642.32
Step by Step Solution
- Step 1: Write the proportion equation
79,690.64 : 119,524.18 = 29,764.48 : x - Step 2: Convert to fraction form
79,690.64/119,524.18 = 29,764.48/x - Step 3: Cross multiply
79,690.64x = 119,524.18 × 29,764.48 - Step 4: Simplify right side
79,690.64x = 3,557,575,065.13 - Step 5: Solve for x
x = 3,557,575,065.13/79,690.64 - Step 6: Final answer
x = 44,642.32
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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.