Finding the Fourth Proportional to 77,780.68, 116,695.38 and 27,859.84
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Solution
The fourth proportional to 77,780.68, 116,695.38 and 27,859.84 is: 41,798.49
Step by Step Solution
- Step 1: Write the proportion equation
77,780.68 : 116,695.38 = 27,859.84 : x - Step 2: Convert to fraction form
77,780.68/116,695.38 = 27,859.84/x - Step 3: Cross multiply
77,780.68x = 116,695.38 × 27,859.84 - Step 4: Simplify right side
77,780.68x = 3,251,114,615.54 - Step 5: Solve for x
x = 3,251,114,615.54/77,780.68 - Step 6: Final answer
x = 41,798.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.