Finding the Fourth Proportional to 88,171.12, 121,713.36 and 59,529.58
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Solution
The fourth proportional to 88,171.12, 121,713.36 and 59,529.58 is: 82,175.95
Step by Step Solution
- Step 1: Write the proportion equation
88,171.12 : 121,713.36 = 59,529.58 : x - Step 2: Convert to fraction form
88,171.12/121,713.36 = 59,529.58/x - Step 3: Cross multiply
88,171.12x = 121,713.36 × 59,529.58 - Step 4: Simplify right side
88,171.12x = 7,245,545,201.19 - Step 5: Solve for x
x = 7,245,545,201.19/88,171.12 - Step 6: Final answer
x = 82,175.95
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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.