Finding the Fourth Proportional to 79,686.35, 119,491.41 and 46,415.90
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Solution
The fourth proportional to 79,686.35, 119,491.41 and 46,415.90 is: 69,601.65
Step by Step Solution
- Step 1: Write the proportion equation
79,686.35 : 119,491.41 = 46,415.90 : x - Step 2: Convert to fraction form
79,686.35/119,491.41 = 46,415.90/x - Step 3: Cross multiply
79,686.35x = 119,491.41 × 46,415.90 - Step 4: Simplify right side
79,686.35x = 5,546,301,337.42 - Step 5: Solve for x
x = 5,546,301,337.42/79,686.35 - Step 6: Final answer
x = 69,601.65
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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.