Finding the Fourth Proportional to 77,724.14, 116,557.65 and 27,790.70
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Solution
The fourth proportional to 77,724.14, 116,557.65 and 27,790.70 is: 41,675.83
Step by Step Solution
- Step 1: Write the proportion equation
77,724.14 : 116,557.65 = 27,790.70 : x - Step 2: Convert to fraction form
77,724.14/116,557.65 = 27,790.70/x - Step 3: Cross multiply
77,724.14x = 116,557.65 × 27,790.70 - Step 4: Simplify right side
77,724.14x = 3,239,218,101.07 - Step 5: Solve for x
x = 3,239,218,101.07/77,724.14 - Step 6: Final answer
x = 41,675.83
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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.