Finding the Fourth Proportional to 79,740.70, 119,638.62 and 35,398.50
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Solution
The fourth proportional to 79,740.70, 119,638.62 and 35,398.50 is: 53,109.99
Step by Step Solution
- Step 1: Write the proportion equation
79,740.70 : 119,638.62 = 35,398.50 : x - Step 2: Convert to fraction form
79,740.70/119,638.62 = 35,398.50/x - Step 3: Cross multiply
79,740.70x = 119,638.62 × 35,398.50 - Step 4: Simplify right side
79,740.70x = 4,235,027,690.07 - Step 5: Solve for x
x = 4,235,027,690.07/79,740.70 - Step 6: Final answer
x = 53,109.99
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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.