Finding the Fourth Proportional to 85,860.42, 118,487.30 and 48,134.68
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Solution
The fourth proportional to 85,860.42, 118,487.30 and 48,134.68 is: 66,425.81
Step by Step Solution
- Step 1: Write the proportion equation
85,860.42 : 118,487.30 = 48,134.68 : x - Step 2: Convert to fraction form
85,860.42/118,487.30 = 48,134.68/x - Step 3: Cross multiply
85,860.42x = 118,487.30 × 48,134.68 - Step 4: Simplify right side
85,860.42x = 5,703,348,269.56 - Step 5: Solve for x
x = 5,703,348,269.56/85,860.42 - Step 6: Final answer
x = 66,425.81
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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.