Finding the Fourth Proportional to 67,991.31, 101,994.39 and 28,566.99
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Solution
The fourth proportional to 67,991.31, 101,994.39 and 28,566.99 is: 42,853.60
Step by Step Solution
- Step 1: Write the proportion equation
67,991.31 : 101,994.39 = 28,566.99 : x - Step 2: Convert to fraction form
67,991.31/101,994.39 = 28,566.99/x - Step 3: Cross multiply
67,991.31x = 101,994.39 × 28,566.99 - Step 4: Simplify right side
67,991.31x = 2,913,672,719.19 - Step 5: Solve for x
x = 2,913,672,719.19/67,991.31 - Step 6: Final answer
x = 42,853.60
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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.