Finding the Fourth Proportional to 86,704.48, 129,955.36 and 36,767.68
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Solution
The fourth proportional to 86,704.48, 129,955.36 and 36,767.68 is: 55,108.54
Step by Step Solution
- Step 1: Write the proportion equation
86,704.48 : 129,955.36 = 36,767.68 : x - Step 2: Convert to fraction form
86,704.48/129,955.36 = 36,767.68/x - Step 3: Cross multiply
86,704.48x = 129,955.36 × 36,767.68 - Step 4: Simplify right side
86,704.48x = 4,778,157,090.76 - Step 5: Solve for x
x = 4,778,157,090.76/86,704.48 - Step 6: Final answer
x = 55,108.54
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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.