Finding the Fourth Proportional to 75,623.99, 113,436.01 and 31,201.91
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Solution
The fourth proportional to 75,623.99, 113,436.01 and 31,201.91 is: 46,802.88
Step by Step Solution
- Step 1: Write the proportion equation
75,623.99 : 113,436.01 = 31,201.91 : x - Step 2: Convert to fraction form
75,623.99/113,436.01 = 31,201.91/x - Step 3: Cross multiply
75,623.99x = 113,436.01 × 31,201.91 - Step 4: Simplify right side
75,623.99x = 3,539,420,497.37 - Step 5: Solve for x
x = 3,539,420,497.37/75,623.99 - Step 6: Final answer
x = 46,802.88
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1.5x scale
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.