Finding the Fourth Proportional to 77,272.94, 106,599.02 and 50,403.26
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Solution
The fourth proportional to 77,272.94, 106,599.02 and 50,403.26 is: 69,531.95
Step by Step Solution
- Step 1: Write the proportion equation
77,272.94 : 106,599.02 = 50,403.26 : x - Step 2: Convert to fraction form
77,272.94/106,599.02 = 50,403.26/x - Step 3: Cross multiply
77,272.94x = 106,599.02 × 50,403.26 - Step 4: Simplify right side
77,272.94x = 5,372,938,120.81 - Step 5: Solve for x
x = 5,372,938,120.81/77,272.94 - Step 6: Final answer
x = 69,531.95
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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.