Finding the Fourth Proportional to 94,906.99, 130,985.81 and 54,617.90
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Solution
The fourth proportional to 94,906.99, 130,985.81 and 54,617.90 is: 75,380.84
Step by Step Solution
- Step 1: Write the proportion equation
94,906.99 : 130,985.81 = 54,617.90 : x - Step 2: Convert to fraction form
94,906.99/130,985.81 = 54,617.90/x - Step 3: Cross multiply
94,906.99x = 130,985.81 × 54,617.90 - Step 4: Simplify right side
94,906.99x = 7,154,169,148.80 - Step 5: Solve for x
x = 7,154,169,148.80/94,906.99 - Step 6: Final answer
x = 75,380.84
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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.