Finding the Fourth Proportional to 128,582.24, 192,779.93 and 53,723.79
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Solution
The fourth proportional to 128,582.24, 192,779.93 and 53,723.79 is: 80,546.65
Step by Step Solution
- Step 1: Write the proportion equation
128,582.24 : 192,779.93 = 53,723.79 : x - Step 2: Convert to fraction form
128,582.24/192,779.93 = 53,723.79/x - Step 3: Cross multiply
128,582.24x = 192,779.93 × 53,723.79 - Step 4: Simplify right side
128,582.24x = 10,356,868,475.53 - Step 5: Solve for x
x = 10,356,868,475.53/128,582.24 - Step 6: Final answer
x = 80,546.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.