Finding the Fourth Proportional to 86,195.14, 129,335.08 and 38,842.94
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Solution
The fourth proportional to 86,195.14, 129,335.08 and 38,842.94 is: 58,283.51
Step by Step Solution
- Step 1: Write the proportion equation
86,195.14 : 129,335.08 = 38,842.94 : x - Step 2: Convert to fraction form
86,195.14/129,335.08 = 38,842.94/x - Step 3: Cross multiply
86,195.14x = 129,335.08 × 38,842.94 - Step 4: Simplify right side
86,195.14x = 5,023,755,051.40 - Step 5: Solve for x
x = 5,023,755,051.40/86,195.14 - Step 6: Final answer
x = 58,283.51
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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.