Finding the Fourth Proportional to 79,313.16, 109,410.69 and 47,028.99
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Solution
The fourth proportional to 79,313.16, 109,410.69 and 47,028.99 is: 64,875.42
Step by Step Solution
- Step 1: Write the proportion equation
79,313.16 : 109,410.69 = 47,028.99 : x - Step 2: Convert to fraction form
79,313.16/109,410.69 = 47,028.99/x - Step 3: Cross multiply
79,313.16x = 109,410.69 × 47,028.99 - Step 4: Simplify right side
79,313.16x = 5,145,474,245.90 - Step 5: Solve for x
x = 5,145,474,245.90/79,313.16 - Step 6: Final answer
x = 64,875.42
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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.