Finding the Fourth Proportional to 79,686.42, 119,491.50 and 46,415.97
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Solution
The fourth proportional to 79,686.42, 119,491.50 and 46,415.97 is: 69,601.75
Step by Step Solution
- Step 1: Write the proportion equation
79,686.42 : 119,491.50 = 46,415.97 : x - Step 2: Convert to fraction form
79,686.42/119,491.50 = 46,415.97/x - Step 3: Cross multiply
79,686.42x = 119,491.50 × 46,415.97 - Step 4: Simplify right side
79,686.42x = 5,546,314,053.31 - Step 5: Solve for x
x = 5,546,314,053.31/79,686.42 - Step 6: Final answer
x = 69,601.75
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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.