Finding the Fourth Proportional to 79,134.44, 109,206.90 and 48,919.01
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Solution
The fourth proportional to 79,134.44, 109,206.90 and 48,919.01 is: 67,509.08
Step by Step Solution
- Step 1: Write the proportion equation
79,134.44 : 109,206.90 = 48,919.01 : x - Step 2: Convert to fraction form
79,134.44/109,206.90 = 48,919.01/x - Step 3: Cross multiply
79,134.44x = 109,206.90 × 48,919.01 - Step 4: Simplify right side
79,134.44x = 5,342,292,887.13 - Step 5: Solve for x
x = 5,342,292,887.13/79,134.44 - Step 6: Final answer
x = 67,509.08
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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.