Finding the Fourth Proportional to 75,316.51, 103,938.13 and 41,326.68
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Solution
The fourth proportional to 75,316.51, 103,938.13 and 41,326.68 is: 57,031.56
Step by Step Solution
- Step 1: Write the proportion equation
75,316.51 : 103,938.13 = 41,326.68 : x - Step 2: Convert to fraction form
75,316.51/103,938.13 = 41,326.68/x - Step 3: Cross multiply
75,316.51x = 103,938.13 × 41,326.68 - Step 4: Simplify right side
75,316.51x = 4,295,417,838.31 - Step 5: Solve for x
x = 4,295,417,838.31/75,316.51 - Step 6: Final answer
x = 57,031.56
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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.