Finding the Fourth Proportional to 86,379.68, 119,199.36 and 48,651.50
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Solution
The fourth proportional to 86,379.68, 119,199.36 and 48,651.50 is: 67,136.48
Step by Step Solution
- Step 1: Write the proportion equation
86,379.68 : 119,199.36 = 48,651.50 : x - Step 2: Convert to fraction form
86,379.68/119,199.36 = 48,651.50/x - Step 3: Cross multiply
86,379.68x = 119,199.36 × 48,651.50 - Step 4: Simplify right side
86,379.68x = 5,799,227,663.04 - Step 5: Solve for x
x = 5,799,227,663.04/86,379.68 - Step 6: Final answer
x = 67,136.48
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.