Finding the Fourth Proportional to 71,962.68, 107,951.70 and 19,372.92
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Solution
The fourth proportional to 71,962.68, 107,951.70 and 19,372.92 is: 29,061.45
Step by Step Solution
- Step 1: Write the proportion equation
71,962.68 : 107,951.70 = 19,372.92 : x - Step 2: Convert to fraction form
71,962.68/107,951.70 = 19,372.92/x - Step 3: Cross multiply
71,962.68x = 107,951.70 × 19,372.92 - Step 4: Simplify right side
71,962.68x = 2,091,339,647.96 - Step 5: Solve for x
x = 2,091,339,647.96/71,962.68 - Step 6: Final answer
x = 29,061.45
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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.