Finding the Fourth Proportional to 94,159.67, 129,939.80 and 51,138.68
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Solution
The fourth proportional to 94,159.67, 129,939.80 and 51,138.68 is: 70,571.08
Step by Step Solution
- Step 1: Write the proportion equation
94,159.67 : 129,939.80 = 51,138.68 : x - Step 2: Convert to fraction form
94,159.67/129,939.80 = 51,138.68/x - Step 3: Cross multiply
94,159.67x = 129,939.80 × 51,138.68 - Step 4: Simplify right side
94,159.67x = 6,644,948,946.07 - Step 5: Solve for x
x = 6,644,948,946.07/94,159.67 - Step 6: Final answer
x = 70,571.08
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.