Finding the Fourth Proportional to 85,837.88, 118,438.05 and 51,839.75
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Solution
The fourth proportional to 85,837.88, 118,438.05 and 51,839.75 is: 71,527.85
Step by Step Solution
- Step 1: Write the proportion equation
85,837.88 : 118,438.05 = 51,839.75 : x - Step 2: Convert to fraction form
85,837.88/118,438.05 = 51,839.75/x - Step 3: Cross multiply
85,837.88x = 118,438.05 × 51,839.75 - Step 4: Simplify right side
85,837.88x = 6,139,798,902.49 - Step 5: Solve for x
x = 6,139,798,902.49/85,837.88 - Step 6: Final answer
x = 71,527.85
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1.5x scale
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.