Finding the Fourth Proportional to 121,979.84, 182,883.36 and 47,036.48
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Solution
The fourth proportional to 121,979.84, 182,883.36 and 47,036.48 is: 70,521.40
Step by Step Solution
- Step 1: Write the proportion equation
121,979.84 : 182,883.36 = 47,036.48 : x - Step 2: Convert to fraction form
121,979.84/182,883.36 = 47,036.48/x - Step 3: Cross multiply
121,979.84x = 182,883.36 × 47,036.48 - Step 4: Simplify right side
121,979.84x = 8,602,189,504.97 - Step 5: Solve for x
x = 8,602,189,504.97/121,979.84 - Step 6: Final answer
x = 70,521.40
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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.