Finding the Fourth Proportional to 113,431.49, 170,252.48 and 57,311.02
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Solution
The fourth proportional to 113,431.49, 170,252.48 and 57,311.02 is: 86,019.71
Step by Step Solution
- Step 1: Write the proportion equation
113,431.49 : 170,252.48 = 57,311.02 : x - Step 2: Convert to fraction form
113,431.49/170,252.48 = 57,311.02/x - Step 3: Cross multiply
113,431.49x = 170,252.48 × 57,311.02 - Step 4: Simplify right side
113,431.49x = 9,757,343,642.42 - Step 5: Solve for x
x = 9,757,343,642.42/113,431.49 - Step 6: Final answer
x = 86,019.71
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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.