Finding the Fourth Proportional to 85,583.99, 128,344.52 and 29,408.15
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Solution
The fourth proportional to 85,583.99, 128,344.52 and 29,408.15 is: 44,101.42
Step by Step Solution
- Step 1: Write the proportion equation
85,583.99 : 128,344.52 = 29,408.15 : x - Step 2: Convert to fraction form
85,583.99/128,344.52 = 29,408.15/x - Step 3: Cross multiply
85,583.99x = 128,344.52 × 29,408.15 - Step 4: Simplify right side
85,583.99x = 3,774,375,290.22 - Step 5: Solve for x
x = 3,774,375,290.22/85,583.99 - Step 6: Final answer
x = 44,101.42
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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.