Finding the Fourth Proportional to 73,852.18, 101,915.49 and 40,318.18
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Solution
The fourth proportional to 73,852.18, 101,915.49 and 40,318.18 is: 55,638.81
Step by Step Solution
- Step 1: Write the proportion equation
73,852.18 : 101,915.49 = 40,318.18 : x - Step 2: Convert to fraction form
73,852.18/101,915.49 = 40,318.18/x - Step 3: Cross multiply
73,852.18x = 101,915.49 × 40,318.18 - Step 4: Simplify right side
73,852.18x = 4,109,047,070.61 - Step 5: Solve for x
x = 4,109,047,070.61/73,852.18 - Step 6: Final answer
x = 55,638.81
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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.