Finding the Fourth Proportional to 54,293.24, 74,926.72 and 30,419.09
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Solution
The fourth proportional to 54,293.24, 74,926.72 and 30,419.09 is: 41,979.50
Step by Step Solution
- Step 1: Write the proportion equation
54,293.24 : 74,926.72 = 30,419.09 : x - Step 2: Convert to fraction form
54,293.24/74,926.72 = 30,419.09/x - Step 3: Cross multiply
54,293.24x = 74,926.72 × 30,419.09 - Step 4: Simplify right side
54,293.24x = 2,279,203,004.91 - Step 5: Solve for x
x = 2,279,203,004.91/54,293.24 - Step 6: Final answer
x = 41,979.50
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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.