Finding the Fourth Proportional to 73,898.18, 101,979.90 and 40,364.18
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Solution
The fourth proportional to 73,898.18, 101,979.90 and 40,364.18 is: 55,702.79
Step by Step Solution
- Step 1: Write the proportion equation
73,898.18 : 101,979.90 = 40,364.18 : x - Step 2: Convert to fraction form
73,898.18/101,979.90 = 40,364.18/x - Step 3: Cross multiply
73,898.18x = 101,979.90 × 40,364.18 - Step 4: Simplify right side
73,898.18x = 4,116,335,039.98 - Step 5: Solve for x
x = 4,116,335,039.98/73,898.18 - Step 6: Final answer
x = 55,702.79
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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.