Finding the Fourth Proportional to 112,924.97, 155,835.39 and 61,936.65
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Solution
The fourth proportional to 112,924.97, 155,835.39 and 61,936.65 is: 85,471.99
Step by Step Solution
- Step 1: Write the proportion equation
112,924.97 : 155,835.39 = 61,936.65 : x - Step 2: Convert to fraction form
112,924.97/155,835.39 = 61,936.65/x - Step 3: Cross multiply
112,924.97x = 155,835.39 × 61,936.65 - Step 4: Simplify right side
112,924.97x = 9,651,922,008.04 - Step 5: Solve for x
x = 9,651,922,008.04/112,924.97 - Step 6: Final answer
x = 85,471.99
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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.