Finding the Fourth Proportional to 88,065.99, 121,531.29 and 47,779.75
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Solution
The fourth proportional to 88,065.99, 121,531.29 and 47,779.75 is: 65,936.18
Step by Step Solution
- Step 1: Write the proportion equation
88,065.99 : 121,531.29 = 47,779.75 : x - Step 2: Convert to fraction form
88,065.99/121,531.29 = 47,779.75/x - Step 3: Cross multiply
88,065.99x = 121,531.29 × 47,779.75 - Step 4: Simplify right side
88,065.99x = 5,806,734,653.38 - Step 5: Solve for x
x = 5,806,734,653.38/88,065.99 - Step 6: Final answer
x = 65,936.18
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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.