Finding the Fourth Proportional to 97,081.11, 145,678.26 and 40,917.73
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Solution
The fourth proportional to 97,081.11, 145,678.26 and 40,917.73 is: 61,400.45
Step by Step Solution
- Step 1: Write the proportion equation
97,081.11 : 145,678.26 = 40,917.73 : x - Step 2: Convert to fraction form
97,081.11/145,678.26 = 40,917.73/x - Step 3: Cross multiply
97,081.11x = 145,678.26 × 40,917.73 - Step 4: Simplify right side
97,081.11x = 5,960,823,709.55 - Step 5: Solve for x
x = 5,960,823,709.55/97,081.11 - Step 6: Final answer
x = 61,400.45
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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.