Finding the Fourth Proportional to 112,322.68, 155,004.74 and 62,021.68
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Solution
The fourth proportional to 112,322.68, 155,004.74 and 62,021.68 is: 85,589.61
Step by Step Solution
- Step 1: Write the proportion equation
112,322.68 : 155,004.74 = 62,021.68 : x - Step 2: Convert to fraction form
112,322.68/155,004.74 = 62,021.68/x - Step 3: Cross multiply
112,322.68x = 155,004.74 × 62,021.68 - Step 4: Simplify right side
112,322.68x = 9,613,654,382.76 - Step 5: Solve for x
x = 9,613,654,382.76/112,322.68 - Step 6: Final answer
x = 85,589.61
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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.