Finding the Fourth Proportional to 75,963.77, 113,945.70 and 19,803.74
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Solution
The fourth proportional to 75,963.77, 113,945.70 and 19,803.74 is: 29,705.62
Step by Step Solution
- Step 1: Write the proportion equation
75,963.77 : 113,945.70 = 19,803.74 : x - Step 2: Convert to fraction form
75,963.77/113,945.70 = 19,803.74/x - Step 3: Cross multiply
75,963.77x = 113,945.70 × 19,803.74 - Step 4: Simplify right side
75,963.77x = 2,256,550,447.19 - Step 5: Solve for x
x = 2,256,550,447.19/75,963.77 - Step 6: Final answer
x = 29,705.62
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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.