Finding the Fourth Proportional to 68,489.33, 102,742.19 and 29,041.31
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Solution
The fourth proportional to 68,489.33, 102,742.19 and 29,041.31 is: 43,565.45
Step by Step Solution
- Step 1: Write the proportion equation
68,489.33 : 102,742.19 = 29,041.31 : x - Step 2: Convert to fraction form
68,489.33/102,742.19 = 29,041.31/x - Step 3: Cross multiply
68,489.33x = 102,742.19 × 29,041.31 - Step 4: Simplify right side
68,489.33x = 2,983,768,010.42 - Step 5: Solve for x
x = 2,983,768,010.42/68,489.33 - Step 6: Final answer
x = 43,565.45
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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.