Finding the Fourth Proportional to 112,955.79, 155,879.60 and 62,654.79
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Solution
The fourth proportional to 112,955.79, 155,879.60 and 62,654.79 is: 86,463.95
Step by Step Solution
- Step 1: Write the proportion equation
112,955.79 : 155,879.60 = 62,654.79 : x - Step 2: Convert to fraction form
112,955.79/155,879.60 = 62,654.79/x - Step 3: Cross multiply
112,955.79x = 155,879.60 × 62,654.79 - Step 4: Simplify right side
112,955.79x = 9,766,603,290.01 - Step 5: Solve for x
x = 9,766,603,290.01/112,955.79 - Step 6: Final answer
x = 86,463.95
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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.