Finding the Fourth Proportional to 77,275.74, 115,965.60 and 27,355.68
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Solution
The fourth proportional to 77,275.74, 115,965.60 and 27,355.68 is: 41,051.92
Step by Step Solution
- Step 1: Write the proportion equation
77,275.74 : 115,965.60 = 27,355.68 : x - Step 2: Convert to fraction form
77,275.74/115,965.60 = 27,355.68/x - Step 3: Cross multiply
77,275.74x = 115,965.60 × 27,355.68 - Step 4: Simplify right side
77,275.74x = 3,172,317,844.61 - Step 5: Solve for x
x = 3,172,317,844.61/77,275.74 - Step 6: Final answer
x = 41,051.92
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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.