Finding the Fourth Proportional to 87,790.14, 121,149.48 and 47,503.02
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Solution
The fourth proportional to 87,790.14, 121,149.48 and 47,503.02 is: 65,553.67
Step by Step Solution
- Step 1: Write the proportion equation
87,790.14 : 121,149.48 = 47,503.02 : x - Step 2: Convert to fraction form
87,790.14/121,149.48 = 47,503.02/x - Step 3: Cross multiply
87,790.14x = 121,149.48 × 47,503.02 - Step 4: Simplify right side
87,790.14x = 5,754,966,171.43 - Step 5: Solve for x
x = 5,754,966,171.43/87,790.14 - Step 6: Final answer
x = 65,553.67
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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.