Finding the Fourth Proportional to 75,282.05, 103,891.14 and 42,573.85
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Solution
The fourth proportional to 75,282.05, 103,891.14 and 42,573.85 is: 58,752.99
Step by Step Solution
- Step 1: Write the proportion equation
75,282.05 : 103,891.14 = 42,573.85 : x - Step 2: Convert to fraction form
75,282.05/103,891.14 = 42,573.85/x - Step 3: Cross multiply
75,282.05x = 103,891.14 × 42,573.85 - Step 4: Simplify right side
75,282.05x = 4,423,045,550.96 - Step 5: Solve for x
x = 4,423,045,550.96/75,282.05 - Step 6: Final answer
x = 58,752.99
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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.