Finding the Fourth Proportional to 88,400.30, 121,995.03 and 48,116.68
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Solution
The fourth proportional to 88,400.30, 121,995.03 and 48,116.68 is: 66,402.44
Step by Step Solution
- Step 1: Write the proportion equation
88,400.30 : 121,995.03 = 48,116.68 : x - Step 2: Convert to fraction form
88,400.30/121,995.03 = 48,116.68/x - Step 3: Cross multiply
88,400.30x = 121,995.03 × 48,116.68 - Step 4: Simplify right side
88,400.30x = 5,869,995,820.10 - Step 5: Solve for x
x = 5,869,995,820.10/88,400.30 - Step 6: Final answer
x = 66,402.44
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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.