Finding the Fourth Proportional to 75,154.08, 103,713.84 and 41,620.80
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Solution
The fourth proportional to 75,154.08, 103,713.84 and 41,620.80 is: 57,437.37
Step by Step Solution
- Step 1: Write the proportion equation
75,154.08 : 103,713.84 = 41,620.80 : x - Step 2: Convert to fraction form
75,154.08/103,713.84 = 41,620.80/x - Step 3: Cross multiply
75,154.08x = 103,713.84 × 41,620.80 - Step 4: Simplify right side
75,154.08x = 4,316,652,991.87 - Step 5: Solve for x
x = 4,316,652,991.87/75,154.08 - Step 6: Final answer
x = 57,437.37
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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.