Finding the Fourth Proportional to 84,823.12, 127,249.36 and 28,663.68
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Solution
The fourth proportional to 84,823.12, 127,249.36 and 28,663.68 is: 43,000.48
Step by Step Solution
- Step 1: Write the proportion equation
84,823.12 : 127,249.36 = 28,663.68 : x - Step 2: Convert to fraction form
84,823.12/127,249.36 = 28,663.68/x - Step 3: Cross multiply
84,823.12x = 127,249.36 × 28,663.68 - Step 4: Simplify right side
84,823.12x = 3,647,434,935.24 - Step 5: Solve for x
x = 3,647,434,935.24/84,823.12 - Step 6: Final answer
x = 43,000.48
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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.