Finding the Fourth Proportional to 79,465.02, 119,755.74 and 71,577.44
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Solution
The fourth proportional to 79,465.02, 119,755.74 and 71,577.44 is: 107,868.96
Step by Step Solution
- Step 1: Write the proportion equation
79,465.02 : 119,755.74 = 71,577.44 : x - Step 2: Convert to fraction form
79,465.02/119,755.74 = 71,577.44/x - Step 3: Cross multiply
79,465.02x = 119,755.74 × 71,577.44 - Step 4: Simplify right side
79,465.02x = 8,571,808,695.73 - Step 5: Solve for x
x = 8,571,808,695.73/79,465.02 - Step 6: Final answer
x = 107,868.96
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.