Finding the Fourth Proportional to 76,135.68, 114,217.44 and 31,740.48
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Solution
The fourth proportional to 76,135.68, 114,217.44 and 31,740.48 is: 47,616.52
Step by Step Solution
- Step 1: Write the proportion equation
76,135.68 : 114,217.44 = 31,740.48 : x - Step 2: Convert to fraction form
76,135.68/114,217.44 = 31,740.48/x - Step 3: Cross multiply
76,135.68x = 114,217.44 × 31,740.48 - Step 4: Simplify right side
76,135.68x = 3,625,316,369.97 - Step 5: Solve for x
x = 3,625,316,369.97/76,135.68 - Step 6: Final answer
x = 47,616.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.