Finding the Fourth Proportional to 91,351.60, 136,933.61 and 46,289.68
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Solution
The fourth proportional to 91,351.60, 136,933.61 and 46,289.68 is: 69,386.99
Step by Step Solution
- Step 1: Write the proportion equation
91,351.60 : 136,933.61 = 46,289.68 : x - Step 2: Convert to fraction form
91,351.60/136,933.61 = 46,289.68/x - Step 3: Cross multiply
91,351.60x = 136,933.61 × 46,289.68 - Step 4: Simplify right side
91,351.60x = 6,338,612,414.36 - Step 5: Solve for x
x = 6,338,612,414.36/91,351.60 - Step 6: Final answer
x = 69,386.99
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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.