Finding the Fourth Proportional to 86,305.05, 129,470.33 and 44,208.95
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Solution
The fourth proportional to 86,305.05, 129,470.33 and 44,208.95 is: 66,319.95
Step by Step Solution
- Step 1: Write the proportion equation
86,305.05 : 129,470.33 = 44,208.95 : x - Step 2: Convert to fraction form
86,305.05/129,470.33 = 44,208.95/x - Step 3: Cross multiply
86,305.05x = 129,470.33 × 44,208.95 - Step 4: Simplify right side
86,305.05x = 5,723,746,808.62 - Step 5: Solve for x
x = 5,723,746,808.62/86,305.05 - Step 6: Final answer
x = 66,319.95
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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.