Finding the Fourth Proportional to 86,510.85, 119,549.99 and 62,390.97
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Solution
The fourth proportional to 86,510.85, 119,549.99 and 62,390.97 is: 86,218.55
Step by Step Solution
- Step 1: Write the proportion equation
86,510.85 : 119,549.99 = 62,390.97 : x - Step 2: Convert to fraction form
86,510.85/119,549.99 = 62,390.97/x - Step 3: Cross multiply
86,510.85x = 119,549.99 × 62,390.97 - Step 4: Simplify right side
86,510.85x = 7,458,839,839.59 - Step 5: Solve for x
x = 7,458,839,839.59/86,510.85 - Step 6: Final answer
x = 86,218.55
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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.