Finding the Fourth Proportional to 77,119.68, 115,649.28 and 27,189.12
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Solution
The fourth proportional to 77,119.68, 115,649.28 and 27,189.12 is: 40,773.02
Step by Step Solution
- Step 1: Write the proportion equation
77,119.68 : 115,649.28 = 27,189.12 : x - Step 2: Convert to fraction form
77,119.68/115,649.28 = 27,189.12/x - Step 3: Cross multiply
77,119.68x = 115,649.28 × 27,189.12 - Step 4: Simplify right side
77,119.68x = 3,144,402,151.83 - Step 5: Solve for x
x = 3,144,402,151.83/77,119.68 - Step 6: Final answer
x = 40,773.02
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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.