Finding the Fourth Proportional to 77,930.08, 107,471.76 and 49,199.83
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Solution
The fourth proportional to 77,930.08, 107,471.76 and 49,199.83 is: 67,850.47
Step by Step Solution
- Step 1: Write the proportion equation
77,930.08 : 107,471.76 = 49,199.83 : x - Step 2: Convert to fraction form
77,930.08/107,471.76 = 49,199.83/x - Step 3: Cross multiply
77,930.08x = 107,471.76 × 49,199.83 - Step 4: Simplify right side
77,930.08x = 5,287,592,321.80 - Step 5: Solve for x
x = 5,287,592,321.80/77,930.08 - Step 6: Final answer
x = 67,850.47
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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.