Finding the Fourth Proportional to 77,123.93, 115,639.17 and 50,437.70
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Solution
The fourth proportional to 77,123.93, 115,639.17 and 50,437.70 is: 75,625.99
Step by Step Solution
- Step 1: Write the proportion equation
77,123.93 : 115,639.17 = 50,437.70 : x - Step 2: Convert to fraction form
77,123.93/115,639.17 = 50,437.70/x - Step 3: Cross multiply
77,123.93x = 115,639.17 × 50,437.70 - Step 4: Simplify right side
77,123.93x = 5,832,573,186.51 - Step 5: Solve for x
x = 5,832,573,186.51/77,123.93 - Step 6: Final answer
x = 75,625.99
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1.5x scale
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.