Finding the Fourth Proportional to 79,320.36, 118,974.64 and 29,377.20
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Solution
The fourth proportional to 79,320.36, 118,974.64 and 29,377.20 is: 44,063.61
Step by Step Solution
- Step 1: Write the proportion equation
79,320.36 : 118,974.64 = 29,377.20 : x - Step 2: Convert to fraction form
79,320.36/118,974.64 = 29,377.20/x - Step 3: Cross multiply
79,320.36x = 118,974.64 × 29,377.20 - Step 4: Simplify right side
79,320.36x = 3,495,141,794.21 - Step 5: Solve for x
x = 3,495,141,794.21/79,320.36 - Step 6: Final answer
x = 44,063.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.