Finding the Fourth Proportional to 79,244.92, 118,864.50 and 31,874.68
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Solution
The fourth proportional to 79,244.92, 118,864.50 and 31,874.68 is: 47,810.86
Step by Step Solution
- Step 1: Write the proportion equation
79,244.92 : 118,864.50 = 31,874.68 : x - Step 2: Convert to fraction form
79,244.92/118,864.50 = 31,874.68/x - Step 3: Cross multiply
79,244.92x = 118,864.50 × 31,874.68 - Step 4: Simplify right side
79,244.92x = 3,788,767,900.86 - Step 5: Solve for x
x = 3,788,767,900.86/79,244.92 - Step 6: Final answer
x = 47,810.86
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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.