Finding the Fourth Proportional to 75,133.05, 103,686.08 and 41,142.97
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Solution
The fourth proportional to 75,133.05, 103,686.08 and 41,142.97 is: 56,778.65
Step by Step Solution
- Step 1: Write the proportion equation
75,133.05 : 103,686.08 = 41,142.97 : x - Step 2: Convert to fraction form
75,133.05/103,686.08 = 41,142.97/x - Step 3: Cross multiply
75,133.05x = 103,686.08 × 41,142.97 - Step 4: Simplify right side
75,133.05x = 4,265,953,278.86 - Step 5: Solve for x
x = 4,265,953,278.86/75,133.05 - Step 6: Final answer
x = 56,778.65
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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.