Finding the Fourth Proportional to 86,417.46, 129,628.99 and 27,253.70
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Solution
The fourth proportional to 86,417.46, 129,628.99 and 27,253.70 is: 40,881.43
Step by Step Solution
- Step 1: Write the proportion equation
86,417.46 : 129,628.99 = 27,253.70 : x - Step 2: Convert to fraction form
86,417.46/129,628.99 = 27,253.70/x - Step 3: Cross multiply
86,417.46x = 129,628.99 × 27,253.70 - Step 4: Simplify right side
86,417.46x = 3,532,869,604.76 - Step 5: Solve for x
x = 3,532,869,604.76/86,417.46 - Step 6: Final answer
x = 40,881.43
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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.