Finding the Fourth Proportional to 87,538.44, 120,966.52 and 71,617.08
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Solution
The fourth proportional to 87,538.44, 120,966.52 and 71,617.08 is: 98,965.31
Step by Step Solution
- Step 1: Write the proportion equation
87,538.44 : 120,966.52 = 71,617.08 : x - Step 2: Convert to fraction form
87,538.44/120,966.52 = 71,617.08/x - Step 3: Cross multiply
87,538.44x = 120,966.52 × 71,617.08 - Step 4: Simplify right side
87,538.44x = 8,663,268,940.16 - Step 5: Solve for x
x = 8,663,268,940.16/87,538.44 - Step 6: Final answer
x = 98,965.31
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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.