Finding the Fourth Proportional to 75,825.05, 104,672.12 and 48,980.63
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Solution
The fourth proportional to 75,825.05, 104,672.12 and 48,980.63 is: 67,614.95
Step by Step Solution
- Step 1: Write the proportion equation
75,825.05 : 104,672.12 = 48,980.63 : x - Step 2: Convert to fraction form
75,825.05/104,672.12 = 48,980.63/x - Step 3: Cross multiply
75,825.05x = 104,672.12 × 48,980.63 - Step 4: Simplify right side
75,825.05x = 5,126,906,397.81 - Step 5: Solve for x
x = 5,126,906,397.81/75,825.05 - Step 6: Final answer
x = 67,614.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.