Finding the Fourth Proportional to 91,563.18, 137,098.68 and 58,102.08
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Solution
The fourth proportional to 91,563.18, 137,098.68 and 58,102.08 is: 86,996.96
Step by Step Solution
- Step 1: Write the proportion equation
91,563.18 : 137,098.68 = 58,102.08 : x - Step 2: Convert to fraction form
91,563.18/137,098.68 = 58,102.08/x - Step 3: Cross multiply
91,563.18x = 137,098.68 × 58,102.08 - Step 4: Simplify right side
91,563.18x = 7,965,718,473.25 - Step 5: Solve for x
x = 7,965,718,473.25/91,563.18 - Step 6: Final answer
x = 86,996.96
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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.