Finding the Fourth Proportional to 75,349.04, 103,979.62 and 41,357.48
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Solution
The fourth proportional to 75,349.04, 103,979.62 and 41,357.48 is: 57,072.19
Step by Step Solution
- Step 1: Write the proportion equation
75,349.04 : 103,979.62 = 41,357.48 : x - Step 2: Convert to fraction form
75,349.04/103,979.62 = 41,357.48/x - Step 3: Cross multiply
75,349.04x = 103,979.62 × 41,357.48 - Step 4: Simplify right side
75,349.04x = 4,300,335,054.56 - Step 5: Solve for x
x = 4,300,335,054.56/75,349.04 - Step 6: Final answer
x = 57,072.19
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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.