Finding the Fourth Proportional to 79,452.09, 109,643.49 and 43,641.99
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Solution
The fourth proportional to 79,452.09, 109,643.49 and 43,641.99 is: 60,225.73
Step by Step Solution
- Step 1: Write the proportion equation
79,452.09 : 109,643.49 = 43,641.99 : x - Step 2: Convert to fraction form
79,452.09/109,643.49 = 43,641.99/x - Step 3: Cross multiply
79,452.09x = 109,643.49 × 43,641.99 - Step 4: Simplify right side
79,452.09x = 4,785,060,094.15 - Step 5: Solve for x
x = 4,785,060,094.15/79,452.09 - Step 6: Final answer
x = 60,225.73
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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.