Finding the Fourth Proportional to 79,691.06, 109,973.68 and 43,880.99
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Solution
The fourth proportional to 79,691.06, 109,973.68 and 43,880.99 is: 60,555.77
Step by Step Solution
- Step 1: Write the proportion equation
79,691.06 : 109,973.68 = 43,880.99 : x - Step 2: Convert to fraction form
79,691.06/109,973.68 = 43,880.99/x - Step 3: Cross multiply
79,691.06x = 109,973.68 × 43,880.99 - Step 4: Simplify right side
79,691.06x = 4,825,753,292.77 - Step 5: Solve for x
x = 4,825,753,292.77/79,691.06 - Step 6: Final answer
x = 60,555.77
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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.