Finding the Fourth Proportional to 85,750.11, 128,639.62 and 29,575.19
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Solution
The fourth proportional to 85,750.11, 128,639.62 and 29,575.19 is: 44,367.77
Step by Step Solution
- Step 1: Write the proportion equation
85,750.11 : 128,639.62 = 29,575.19 : x - Step 2: Convert to fraction form
85,750.11/128,639.62 = 29,575.19/x - Step 3: Cross multiply
85,750.11x = 128,639.62 × 29,575.19 - Step 4: Simplify right side
85,750.11x = 3,804,540,559.83 - Step 5: Solve for x
x = 3,804,540,559.83/85,750.11 - Step 6: Final answer
x = 44,367.77
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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.