Finding the Fourth Proportional to 85,145.74, 117,504.77 and 47,419.99
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Solution
The fourth proportional to 85,145.74, 117,504.77 and 47,419.99 is: 65,441.62
Step by Step Solution
- Step 1: Write the proportion equation
85,145.74 : 117,504.77 = 47,419.99 : x - Step 2: Convert to fraction form
85,145.74/117,504.77 = 47,419.99/x - Step 3: Cross multiply
85,145.74x = 117,504.77 × 47,419.99 - Step 4: Simplify right side
85,145.74x = 5,572,075,018.35 - Step 5: Solve for x
x = 5,572,075,018.35/85,145.74 - Step 6: Final answer
x = 65,441.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.