Finding the Fourth Proportional to 79,781.65, 119,672.10 and 23,622.09
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Solution
The fourth proportional to 79,781.65, 119,672.10 and 23,622.09 is: 35,433.02
Step by Step Solution
- Step 1: Write the proportion equation
79,781.65 : 119,672.10 = 23,622.09 : x - Step 2: Convert to fraction form
79,781.65/119,672.10 = 23,622.09/x - Step 3: Cross multiply
79,781.65x = 119,672.10 × 23,622.09 - Step 4: Simplify right side
79,781.65x = 2,826,904,667.92 - Step 5: Solve for x
x = 2,826,904,667.92/79,781.65 - Step 6: Final answer
x = 35,433.02
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1.5x scale
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.