Finding the Fourth Proportional to 86,550.08, 129,825.12 and 20,886.08
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Solution
The fourth proportional to 86,550.08, 129,825.12 and 20,886.08 is: 31,329.12
Step by Step Solution
- Step 1: Write the proportion equation
86,550.08 : 129,825.12 = 20,886.08 : x - Step 2: Convert to fraction form
86,550.08/129,825.12 = 20,886.08/x - Step 3: Cross multiply
86,550.08x = 129,825.12 × 20,886.08 - Step 4: Simplify right side
86,550.08x = 2,711,537,842.33 - Step 5: Solve for x
x = 2,711,537,842.33/86,550.08 - Step 6: Final answer
x = 31,329.12
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1.5x scale
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.