Finding the Fourth Proportional to 79,449.44, 119,174.04 and 20,285.12
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Solution
The fourth proportional to 79,449.44, 119,174.04 and 20,285.12 is: 30,427.65
Step by Step Solution
- Step 1: Write the proportion equation
79,449.44 : 119,174.04 = 20,285.12 : x - Step 2: Convert to fraction form
79,449.44/119,174.04 = 20,285.12/x - Step 3: Cross multiply
79,449.44x = 119,174.04 × 20,285.12 - Step 4: Simplify right side
79,449.44x = 2,417,459,702.28 - Step 5: Solve for x
x = 2,417,459,702.28/79,449.44 - Step 6: Final answer
x = 30,427.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.