Finding the Fourth Proportional to 85,307.70, 127,986.14 and 26,152.09
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Solution
The fourth proportional to 85,307.70, 127,986.14 and 26,152.09 is: 39,235.67
Step by Step Solution
- Step 1: Write the proportion equation
85,307.70 : 127,986.14 = 26,152.09 : x - Step 2: Convert to fraction form
85,307.70/127,986.14 = 26,152.09/x - Step 3: Cross multiply
85,307.70x = 127,986.14 × 26,152.09 - Step 4: Simplify right side
85,307.70x = 3,347,105,052.03 - Step 5: Solve for x
x = 3,347,105,052.03/85,307.70 - Step 6: Final answer
x = 39,235.67
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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.