Finding the Fourth Proportional to 87,816.04, 121,189.07 and 53,817.96
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Solution
The fourth proportional to 87,816.04, 121,189.07 and 53,817.96 is: 74,270.58
Step by Step Solution
- Step 1: Write the proportion equation
87,816.04 : 121,189.07 = 53,817.96 : x - Step 2: Convert to fraction form
87,816.04/121,189.07 = 53,817.96/x - Step 3: Cross multiply
87,816.04x = 121,189.07 × 53,817.96 - Step 4: Simplify right side
87,816.04x = 6,522,148,521.70 - Step 5: Solve for x
x = 6,522,148,521.70/87,816.04 - Step 6: Final answer
x = 74,270.58
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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.