Finding the Fourth Proportional to 79,646.84, 109,911.81 and 43,836.09
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Solution
The fourth proportional to 79,646.84, 109,911.81 and 43,836.09 is: 60,493.35
Step by Step Solution
- Step 1: Write the proportion equation
79,646.84 : 109,911.81 = 43,836.09 : x - Step 2: Convert to fraction form
79,646.84/109,911.81 = 43,836.09/x - Step 3: Cross multiply
79,646.84x = 109,911.81 × 43,836.09 - Step 4: Simplify right side
79,646.84x = 4,818,103,995.22 - Step 5: Solve for x
x = 4,818,103,995.22/79,646.84 - Step 6: Final answer
x = 60,493.35
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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.