Finding the Fourth Proportional to 75,503.43, 113,306.18 and 28,755.09
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Solution
The fourth proportional to 75,503.43, 113,306.18 and 28,755.09 is: 43,152.07
Step by Step Solution
- Step 1: Write the proportion equation
75,503.43 : 113,306.18 = 28,755.09 : x - Step 2: Convert to fraction form
75,503.43/113,306.18 = 28,755.09/x - Step 3: Cross multiply
75,503.43x = 113,306.18 × 28,755.09 - Step 4: Simplify right side
75,503.43x = 3,258,129,259.68 - Step 5: Solve for x
x = 3,258,129,259.68/75,503.43 - Step 6: Final answer
x = 43,152.07
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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.