Finding the Fourth Proportional to 86,381.13, 129,510.36 and 33,028.14
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Solution
The fourth proportional to 86,381.13, 129,510.36 and 33,028.14 is: 49,518.76
Step by Step Solution
- Step 1: Write the proportion equation
86,381.13 : 129,510.36 = 33,028.14 : x - Step 2: Convert to fraction form
86,381.13/129,510.36 = 33,028.14/x - Step 3: Cross multiply
86,381.13x = 129,510.36 × 33,028.14 - Step 4: Simplify right side
86,381.13x = 4,277,486,301.53 - Step 5: Solve for x
x = 4,277,486,301.53/86,381.13 - Step 6: Final answer
x = 49,518.76
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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.