Finding the Fourth Proportional to 88,683.12, 122,427.86 and 68,494.68
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Solution
The fourth proportional to 88,683.12, 122,427.86 and 68,494.68 is: 94,557.53
Step by Step Solution
- Step 1: Write the proportion equation
88,683.12 : 122,427.86 = 68,494.68 : x - Step 2: Convert to fraction form
88,683.12/122,427.86 = 68,494.68/x - Step 3: Cross multiply
88,683.12x = 122,427.86 × 68,494.68 - Step 4: Simplify right side
88,683.12x = 8,385,656,751.31 - Step 5: Solve for x
x = 8,385,656,751.31/88,683.12 - Step 6: Final answer
x = 94,557.53
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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.