Finding the Fourth Proportional to 88,130.08, 121,635.05 and 49,891.81
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Solution
The fourth proportional to 88,130.08, 121,635.05 and 49,891.81 is: 68,859.49
Step by Step Solution
- Step 1: Write the proportion equation
88,130.08 : 121,635.05 = 49,891.81 : x - Step 2: Convert to fraction form
88,130.08/121,635.05 = 49,891.81/x - Step 3: Cross multiply
88,130.08x = 121,635.05 × 49,891.81 - Step 4: Simplify right side
88,130.08x = 6,068,592,554.48 - Step 5: Solve for x
x = 6,068,592,554.48/88,130.08 - Step 6: Final answer
x = 68,859.49
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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.