Finding the Fourth Proportional to 79,486.02, 109,689.93 and 43,675.26
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Solution
The fourth proportional to 79,486.02, 109,689.93 and 43,675.26 is: 60,271.43
Step by Step Solution
- Step 1: Write the proportion equation
79,486.02 : 109,689.93 = 43,675.26 : x - Step 2: Convert to fraction form
79,486.02/109,689.93 = 43,675.26/x - Step 3: Cross multiply
79,486.02x = 109,689.93 × 43,675.26 - Step 4: Simplify right side
79,486.02x = 4,790,736,212.13 - Step 5: Solve for x
x = 4,790,736,212.13/79,486.02 - Step 6: Final answer
x = 60,271.43
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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.