Finding the Fourth Proportional to 83,691.72, 125,389.80 and 44,161.62
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Solution
The fourth proportional to 83,691.72, 125,389.80 and 44,161.62 is: 66,164.45
Step by Step Solution
- Step 1: Write the proportion equation
83,691.72 : 125,389.80 = 44,161.62 : x - Step 2: Convert to fraction form
83,691.72/125,389.80 = 44,161.62/x - Step 3: Cross multiply
83,691.72x = 125,389.80 × 44,161.62 - Step 4: Simplify right side
83,691.72x = 5,537,416,699.48 - Step 5: Solve for x
x = 5,537,416,699.48/83,691.72 - Step 6: Final answer
x = 66,164.45
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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.