Finding the Fourth Proportional to 68,720.08, 102,993.90 and 37,128.82
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Solution
The fourth proportional to 68,720.08, 102,993.90 and 37,128.82 is: 55,646.65
Step by Step Solution
- Step 1: Write the proportion equation
68,720.08 : 102,993.90 = 37,128.82 : x - Step 2: Convert to fraction form
68,720.08/102,993.90 = 37,128.82/x - Step 3: Cross multiply
68,720.08x = 102,993.90 × 37,128.82 - Step 4: Simplify right side
68,720.08x = 3,824,041,974.20 - Step 5: Solve for x
x = 3,824,041,974.20/68,720.08 - Step 6: Final answer
x = 55,646.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.