Finding the Fourth Proportional to 86,265.34, 119,045.90 and 48,539.62
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Solution
The fourth proportional to 86,265.34, 119,045.90 and 48,539.62 is: 66,984.52
Step by Step Solution
- Step 1: Write the proportion equation
86,265.34 : 119,045.90 = 48,539.62 : x - Step 2: Convert to fraction form
86,265.34/119,045.90 = 48,539.62/x - Step 3: Cross multiply
86,265.34x = 119,045.90 × 48,539.62 - Step 4: Simplify right side
86,265.34x = 5,778,442,748.56 - Step 5: Solve for x
x = 5,778,442,748.56/86,265.34 - Step 6: Final answer
x = 66,984.52
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1.5x scale
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.