Finding the Fourth Proportional to 79,035.64, 117,536.96 and 76,544.08
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Solution
The fourth proportional to 79,035.64, 117,536.96 and 76,544.08 is: 113,831.66
Step by Step Solution
- Step 1: Write the proportion equation
79,035.64 : 117,536.96 = 76,544.08 : x - Step 2: Convert to fraction form
79,035.64/117,536.96 = 76,544.08/x - Step 3: Cross multiply
79,035.64x = 117,536.96 × 76,544.08 - Step 4: Simplify right side
79,035.64x = 8,996,758,469.20 - Step 5: Solve for x
x = 8,996,758,469.20/79,035.64 - Step 6: Final answer
x = 113,831.66
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.