Finding the Fourth Proportional to 86,756.13, 130,132.40 and 27,591.93
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Solution
The fourth proportional to 86,756.13, 130,132.40 and 27,591.93 is: 41,387.32
Step by Step Solution
- Step 1: Write the proportion equation
86,756.13 : 130,132.40 = 27,591.93 : x - Step 2: Convert to fraction form
86,756.13/130,132.40 = 27,591.93/x - Step 3: Cross multiply
86,756.13x = 130,132.40 × 27,591.93 - Step 4: Simplify right side
86,756.13x = 3,590,603,933.57 - Step 5: Solve for x
x = 3,590,603,933.57/86,756.13 - Step 6: Final answer
x = 41,387.32
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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.