Finding the Fourth Proportional to 75,795.19, 113,644.18 and 31,452.55
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Solution
The fourth proportional to 75,795.19, 113,644.18 and 31,452.55 is: 47,158.65
Step by Step Solution
- Step 1: Write the proportion equation
75,795.19 : 113,644.18 = 31,452.55 : x - Step 2: Convert to fraction form
75,795.19/113,644.18 = 31,452.55/x - Step 3: Cross multiply
75,795.19x = 113,644.18 × 31,452.55 - Step 4: Simplify right side
75,795.19x = 3,574,399,008.86 - Step 5: Solve for x
x = 3,574,399,008.86/75,795.19 - Step 6: Final answer
x = 47,158.65
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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.