Finding the Fourth Proportional to 97,814.40, 134,983.92 and 55,372.08
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Solution
The fourth proportional to 97,814.40, 134,983.92 and 55,372.08 is: 76,413.50
Step by Step Solution
- Step 1: Write the proportion equation
97,814.40 : 134,983.92 = 55,372.08 : x - Step 2: Convert to fraction form
97,814.40/134,983.92 = 55,372.08/x - Step 3: Cross multiply
97,814.40x = 134,983.92 × 55,372.08 - Step 4: Simplify right side
97,814.40x = 7,474,340,416.95 - Step 5: Solve for x
x = 7,474,340,416.95/97,814.40 - Step 6: Final answer
x = 76,413.50
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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.