Finding the Fourth Proportional to 68,257.40, 102,539.70 and 65,646.20
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Solution
The fourth proportional to 68,257.40, 102,539.70 and 65,646.20 is: 98,617.02
Step by Step Solution
- Step 1: Write the proportion equation
68,257.40 : 102,539.70 = 65,646.20 : x - Step 2: Convert to fraction form
68,257.40/102,539.70 = 65,646.20/x - Step 3: Cross multiply
68,257.40x = 102,539.70 × 65,646.20 - Step 4: Simplify right side
68,257.40x = 6,731,341,654.14 - Step 5: Solve for x
x = 6,731,341,654.14/68,257.40 - Step 6: Final answer
x = 98,617.02
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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.