Finding the Fourth Proportional to 75,305.97, 112,891.80 and 28,591.65
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Solution
The fourth proportional to 75,305.97, 112,891.80 and 28,591.65 is: 42,861.98
Step by Step Solution
- Step 1: Write the proportion equation
75,305.97 : 112,891.80 = 28,591.65 : x - Step 2: Convert to fraction form
75,305.97/112,891.80 = 28,591.65/x - Step 3: Cross multiply
75,305.97x = 112,891.80 × 28,591.65 - Step 4: Simplify right side
75,305.97x = 3,227,762,833.47 - Step 5: Solve for x
x = 3,227,762,833.47/75,305.97 - Step 6: Final answer
x = 42,861.98
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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.