Finding the Fourth Proportional to 81,104.08, 121,565.28 and 53,078.08
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Solution
The fourth proportional to 81,104.08, 121,565.28 and 53,078.08 is: 79,557.67
Step by Step Solution
- Step 1: Write the proportion equation
81,104.08 : 121,565.28 = 53,078.08 : x - Step 2: Convert to fraction form
81,104.08/121,565.28 = 53,078.08/x - Step 3: Cross multiply
81,104.08x = 121,565.28 × 53,078.08 - Step 4: Simplify right side
81,104.08x = 6,452,451,657.06 - Step 5: Solve for x
x = 6,452,451,657.06/81,104.08 - Step 6: Final answer
x = 79,557.67
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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.