Finding the Fourth Proportional to 91,041.68, 125,442.60 and 61,181.84
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Solution
The fourth proportional to 91,041.68, 125,442.60 and 61,181.84 is: 84,299.95
Step by Step Solution
- Step 1: Write the proportion equation
91,041.68 : 125,442.60 = 61,181.84 : x - Step 2: Convert to fraction form
91,041.68/125,442.60 = 61,181.84/x - Step 3: Cross multiply
91,041.68x = 125,442.60 × 61,181.84 - Step 4: Simplify right side
91,041.68x = 7,674,809,082.38 - Step 5: Solve for x
x = 7,674,809,082.38/91,041.68 - Step 6: Final answer
x = 84,299.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.