Finding the Fourth Proportional to 76,953.48, 115,428.97 and 63,778.02
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Solution
The fourth proportional to 76,953.48, 115,428.97 and 63,778.02 is: 95,665.99
Step by Step Solution
- Step 1: Write the proportion equation
76,953.48 : 115,428.97 = 63,778.02 : x - Step 2: Convert to fraction form
76,953.48/115,428.97 = 63,778.02/x - Step 3: Cross multiply
76,953.48x = 115,428.97 × 63,778.02 - Step 4: Simplify right side
76,953.48x = 7,361,831,157.24 - Step 5: Solve for x
x = 7,361,831,157.24/76,953.48 - Step 6: Final answer
x = 95,665.99
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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.