Finding the Fourth Proportional to 98,553.29, 147,853.16 and 31,988.30
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Solution
The fourth proportional to 98,553.29, 147,853.16 and 31,988.30 is: 47,989.99
Step by Step Solution
- Step 1: Write the proportion equation
98,553.29 : 147,853.16 = 31,988.30 : x - Step 2: Convert to fraction form
98,553.29/147,853.16 = 31,988.30/x - Step 3: Cross multiply
98,553.29x = 147,853.16 × 31,988.30 - Step 4: Simplify right side
98,553.29x = 4,729,571,687.63 - Step 5: Solve for x
x = 4,729,571,687.63/98,553.29 - Step 6: Final answer
x = 47,989.99
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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.