Finding the Fourth Proportional to 75,493.68, 113,142.48 and 31,069.92
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Solution
The fourth proportional to 75,493.68, 113,142.48 and 31,069.92 is: 46,564.53
Step by Step Solution
- Step 1: Write the proportion equation
75,493.68 : 113,142.48 = 31,069.92 : x - Step 2: Convert to fraction form
75,493.68/113,142.48 = 31,069.92/x - Step 3: Cross multiply
75,493.68x = 113,142.48 × 31,069.92 - Step 4: Simplify right side
75,493.68x = 3,515,327,802.20 - Step 5: Solve for x
x = 3,515,327,802.20/75,493.68 - Step 6: Final answer
x = 46,564.53
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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.