Finding the Fourth Proportional to 84,851.70, 127,277.55 and 71,729.70
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Solution
The fourth proportional to 84,851.70, 127,277.55 and 71,729.70 is: 107,594.55
Step by Step Solution
- Step 1: Write the proportion equation
84,851.70 : 127,277.55 = 71,729.70 : x - Step 2: Convert to fraction form
84,851.70/127,277.55 = 71,729.70/x - Step 3: Cross multiply
84,851.70x = 127,277.55 × 71,729.70 - Step 4: Simplify right side
84,851.70x = 9,129,580,478.24 - Step 5: Solve for x
x = 9,129,580,478.24/84,851.70 - Step 6: Final answer
x = 107,594.55
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1.5x scale
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.