Finding the Fourth Proportional to 75,578.24, 104,295.12 and 42,046.40
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Solution
The fourth proportional to 75,578.24, 104,295.12 and 42,046.40 is: 58,022.45
Step by Step Solution
- Step 1: Write the proportion equation
75,578.24 : 104,295.12 = 42,046.40 : x - Step 2: Convert to fraction form
75,578.24/104,295.12 = 42,046.40/x - Step 3: Cross multiply
75,578.24x = 104,295.12 × 42,046.40 - Step 4: Simplify right side
75,578.24x = 4,385,234,333.57 - Step 5: Solve for x
x = 4,385,234,333.57/75,578.24 - Step 6: Final answer
x = 58,022.45
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1.5x scale
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.