Finding the Fourth Proportional to 75,943.68, 113,915.52 and 48,416.64
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Solution
The fourth proportional to 75,943.68, 113,915.52 and 48,416.64 is: 72,624.96
Step by Step Solution
- Step 1: Write the proportion equation
75,943.68 : 113,915.52 = 48,416.64 : x - Step 2: Convert to fraction form
75,943.68/113,915.52 = 48,416.64/x - Step 3: Cross multiply
75,943.68x = 113,915.52 × 48,416.64 - Step 4: Simplify right side
75,943.68x = 5,515,406,722.25 - Step 5: Solve for x
x = 5,515,406,722.25/75,943.68 - Step 6: Final answer
x = 72,624.96
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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.