Finding the Fourth Proportional to 92,809.17, 128,075.97 and 50,366.79
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Solution
The fourth proportional to 92,809.17, 128,075.97 and 50,366.79 is: 69,505.80
Step by Step Solution
- Step 1: Write the proportion equation
92,809.17 : 128,075.97 = 50,366.79 : x - Step 2: Convert to fraction form
92,809.17/128,075.97 = 50,366.79/x - Step 3: Cross multiply
92,809.17x = 128,075.97 × 50,366.79 - Step 4: Simplify right side
92,809.17x = 6,450,775,485.04 - Step 5: Solve for x
x = 6,450,775,485.04/92,809.17 - Step 6: Final answer
x = 69,505.80
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1.5x scale
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.