Finding the Fourth Proportional to 68,690.60, 103,074.16 and 37,099.99
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Solution
The fourth proportional to 68,690.60, 103,074.16 and 37,099.99 is: 55,670.65
Step by Step Solution
- Step 1: Write the proportion equation
68,690.60 : 103,074.16 = 37,099.99 : x - Step 2: Convert to fraction form
68,690.60/103,074.16 = 37,099.99/x - Step 3: Cross multiply
68,690.60x = 103,074.16 × 37,099.99 - Step 4: Simplify right side
68,690.60x = 3,824,049,789.89 - Step 5: Solve for x
x = 3,824,049,789.89/68,690.60 - Step 6: Final answer
x = 55,670.65
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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.