Finding the Fourth Proportional to 88,277.16, 121,821.05 and 47,991.93
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Solution
The fourth proportional to 88,277.16, 121,821.05 and 47,991.93 is: 66,228.09
Step by Step Solution
- Step 1: Write the proportion equation
88,277.16 : 121,821.05 = 47,991.93 : x - Step 2: Convert to fraction form
88,277.16/121,821.05 = 47,991.93/x - Step 3: Cross multiply
88,277.16x = 121,821.05 × 47,991.93 - Step 4: Simplify right side
88,277.16x = 5,846,427,304.13 - Step 5: Solve for x
x = 5,846,427,304.13/88,277.16 - Step 6: Final answer
x = 66,228.09
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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.