Finding the Fourth Proportional to 83,918.53, 125,877.80 and 28,514.53
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Solution
The fourth proportional to 83,918.53, 125,877.80 and 28,514.53 is: 42,771.80
Step by Step Solution
- Step 1: Write the proportion equation
83,918.53 : 125,877.80 = 28,514.53 : x - Step 2: Convert to fraction form
83,918.53/125,877.80 = 28,514.53/x - Step 3: Cross multiply
83,918.53x = 125,877.80 × 28,514.53 - Step 4: Simplify right side
83,918.53x = 3,589,346,372.67 - Step 5: Solve for x
x = 3,589,346,372.67/83,918.53 - Step 6: Final answer
x = 42,771.80
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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.