Finding the Fourth Proportional to 79,380.99, 109,555.88 and 45,846.99
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Solution
The fourth proportional to 79,380.99, 109,555.88 and 45,846.99 is: 63,274.68
Step by Step Solution
- Step 1: Write the proportion equation
79,380.99 : 109,555.88 = 45,846.99 : x - Step 2: Convert to fraction form
79,380.99/109,555.88 = 45,846.99/x - Step 3: Cross multiply
79,380.99x = 109,555.88 × 45,846.99 - Step 4: Simplify right side
79,380.99x = 5,022,807,105.57 - Step 5: Solve for x
x = 5,022,807,105.57/79,380.99 - Step 6: Final answer
x = 63,274.68
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1.5x scale
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.