Finding the Fourth Proportional to 85,565.44, 128,338.34 and 22,391.66
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Solution
The fourth proportional to 85,565.44, 128,338.34 and 22,391.66 is: 33,584.92
Step by Step Solution
- Step 1: Write the proportion equation
85,565.44 : 128,338.34 = 22,391.66 : x - Step 2: Convert to fraction form
85,565.44/128,338.34 = 22,391.66/x - Step 3: Cross multiply
85,565.44x = 128,338.34 × 22,391.66 - Step 4: Simplify right side
85,565.44x = 2,873,708,474.24 - Step 5: Solve for x
x = 2,873,708,474.24/85,565.44 - Step 6: Final answer
x = 33,584.92
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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.