Finding the Fourth Proportional to 80,437.12, 110,992.08 and 53,596.96
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Solution
The fourth proportional to 80,437.12, 110,992.08 and 53,596.96 is: 73,956.38
Step by Step Solution
- Step 1: Write the proportion equation
80,437.12 : 110,992.08 = 53,596.96 : x - Step 2: Convert to fraction form
80,437.12/110,992.08 = 53,596.96/x - Step 3: Cross multiply
80,437.12x = 110,992.08 × 53,596.96 - Step 4: Simplify right side
80,437.12x = 5,948,838,072.08 - Step 5: Solve for x
x = 5,948,838,072.08/80,437.12 - Step 6: Final answer
x = 73,956.38
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1.5x scale
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.