Finding the Fourth Proportional to 102,380.24, 141,265.98 and 57,057.08
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Solution
The fourth proportional to 102,380.24, 141,265.98 and 57,057.08 is: 78,728.32
Step by Step Solution
- Step 1: Write the proportion equation
102,380.24 : 141,265.98 = 57,057.08 : x - Step 2: Convert to fraction form
102,380.24/141,265.98 = 57,057.08/x - Step 3: Cross multiply
102,380.24x = 141,265.98 × 57,057.08 - Step 4: Simplify right side
102,380.24x = 8,060,224,322.14 - Step 5: Solve for x
x = 8,060,224,322.14/102,380.24 - Step 6: Final answer
x = 78,728.32
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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.