Finding the Fourth Proportional to 86,178.21, 129,263.95 and 44,057.80
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Solution
The fourth proportional to 86,178.21, 129,263.95 and 44,057.80 is: 66,084.98
Step by Step Solution
- Step 1: Write the proportion equation
86,178.21 : 129,263.95 = 44,057.80 : x - Step 2: Convert to fraction form
86,178.21/129,263.95 = 44,057.80/x - Step 3: Cross multiply
86,178.21x = 129,263.95 × 44,057.80 - Step 4: Simplify right side
86,178.21x = 5,695,085,256.31 - Step 5: Solve for x
x = 5,695,085,256.31/86,178.21 - Step 6: Final answer
x = 66,084.98
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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.