Finding the Fourth Proportional to 79,322.46, 109,578.87 and 63,385.98
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Solution
The fourth proportional to 79,322.46, 109,578.87 and 63,385.98 is: 87,563.65
Step by Step Solution
- Step 1: Write the proportion equation
79,322.46 : 109,578.87 = 63,385.98 : x - Step 2: Convert to fraction form
79,322.46/109,578.87 = 63,385.98/x - Step 3: Cross multiply
79,322.46x = 109,578.87 × 63,385.98 - Step 4: Simplify right side
79,322.46x = 6,945,764,062.24 - Step 5: Solve for x
x = 6,945,764,062.24/79,322.46 - Step 6: Final answer
x = 87,563.65
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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.