Finding the Fourth Proportional to 81,982.76, 122,932.80 and 37,572.08
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Solution
The fourth proportional to 81,982.76, 122,932.80 and 37,572.08 is: 56,339.17
Step by Step Solution
- Step 1: Write the proportion equation
81,982.76 : 122,932.80 = 37,572.08 : x - Step 2: Convert to fraction form
81,982.76/122,932.80 = 37,572.08/x - Step 3: Cross multiply
81,982.76x = 122,932.80 × 37,572.08 - Step 4: Simplify right side
81,982.76x = 4,618,840,996.22 - Step 5: Solve for x
x = 4,618,840,996.22/81,982.76 - Step 6: Final answer
x = 56,339.17
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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.