Finding the Fourth Proportional to 77,938.24, 107,549.08 and 43,944.98
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Solution
The fourth proportional to 77,938.24, 107,549.08 and 43,944.98 is: 60,640.86
Step by Step Solution
- Step 1: Write the proportion equation
77,938.24 : 107,549.08 = 43,944.98 : x - Step 2: Convert to fraction form
77,938.24/107,549.08 = 43,944.98/x - Step 3: Cross multiply
77,938.24x = 107,549.08 × 43,944.98 - Step 4: Simplify right side
77,938.24x = 4,726,242,169.62 - Step 5: Solve for x
x = 4,726,242,169.62/77,938.24 - Step 6: Final answer
x = 60,640.86
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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.