Finding the Fourth Proportional to 75,968.42, 113,913.74 and 40,449.92
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Solution
The fourth proportional to 75,968.42, 113,913.74 and 40,449.92 is: 60,654.17
Step by Step Solution
- Step 1: Write the proportion equation
75,968.42 : 113,913.74 = 40,449.92 : x - Step 2: Convert to fraction form
75,968.42/113,913.74 = 40,449.92/x - Step 3: Cross multiply
75,968.42x = 113,913.74 × 40,449.92 - Step 4: Simplify right side
75,968.42x = 4,607,801,201.46 - Step 5: Solve for x
x = 4,607,801,201.46/75,968.42 - Step 6: Final answer
x = 60,654.17
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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.