Finding the Fourth Proportional to 87,908.09, 121,474.08 and 63,993.24
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Solution
The fourth proportional to 87,908.09, 121,474.08 and 63,993.24 is: 88,427.82
Step by Step Solution
- Step 1: Write the proportion equation
87,908.09 : 121,474.08 = 63,993.24 : x - Step 2: Convert to fraction form
87,908.09/121,474.08 = 63,993.24/x - Step 3: Cross multiply
87,908.09x = 121,474.08 × 63,993.24 - Step 4: Simplify right side
87,908.09x = 7,773,519,955.22 - Step 5: Solve for x
x = 7,773,519,955.22/87,908.09 - Step 6: Final answer
x = 88,427.82
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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.