Finding the Fourth Proportional to 79,449.42, 119,172.30 and 39,995.94
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Solution
The fourth proportional to 79,449.42, 119,172.30 and 39,995.94 is: 59,992.99
Step by Step Solution
- Step 1: Write the proportion equation
79,449.42 : 119,172.30 = 39,995.94 : x - Step 2: Convert to fraction form
79,449.42/119,172.30 = 39,995.94/x - Step 3: Cross multiply
79,449.42x = 119,172.30 × 39,995.94 - Step 4: Simplify right side
79,449.42x = 4,766,408,160.46 - Step 5: Solve for x
x = 4,766,408,160.46/79,449.42 - Step 6: Final answer
x = 59,992.99
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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.