Finding the Fourth Proportional to 68,407.60, 102,525.74 and 36,739.84
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Solution
The fourth proportional to 68,407.60, 102,525.74 and 36,739.84 is: 55,063.75
Step by Step Solution
- Step 1: Write the proportion equation
68,407.60 : 102,525.74 = 36,739.84 : x - Step 2: Convert to fraction form
68,407.60/102,525.74 = 36,739.84/x - Step 3: Cross multiply
68,407.60x = 102,525.74 × 36,739.84 - Step 4: Simplify right side
68,407.60x = 3,766,779,283.48 - Step 5: Solve for x
x = 3,766,779,283.48/68,407.60 - Step 6: Final answer
x = 55,063.75
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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.