Finding the Fourth Proportional to 77,406.63, 106,765.17 and 47,193.23
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Solution
The fourth proportional to 77,406.63, 106,765.17 and 47,193.23 is: 65,092.52
Step by Step Solution
- Step 1: Write the proportion equation
77,406.63 : 106,765.17 = 47,193.23 : x - Step 2: Convert to fraction form
77,406.63/106,765.17 = 47,193.23/x - Step 3: Cross multiply
77,406.63x = 106,765.17 × 47,193.23 - Step 4: Simplify right side
77,406.63x = 5,038,592,689.97 - Step 5: Solve for x
x = 5,038,592,689.97/77,406.63 - Step 6: Final answer
x = 65,092.52
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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.