Finding the Fourth Proportional to 79,379.64, 109,560.89 and 47,566.99
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Solution
The fourth proportional to 79,379.64, 109,560.89 and 47,566.99 is: 65,652.62
Step by Step Solution
- Step 1: Write the proportion equation
79,379.64 : 109,560.89 = 47,566.99 : x - Step 2: Convert to fraction form
79,379.64/109,560.89 = 47,566.99/x - Step 3: Cross multiply
79,379.64x = 109,560.89 × 47,566.99 - Step 4: Simplify right side
79,379.64x = 5,211,481,521.19 - Step 5: Solve for x
x = 5,211,481,521.19/79,379.64 - Step 6: Final answer
x = 65,652.62
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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.