Finding the Fourth Proportional to 74,264.20, 102,484.62 and 40,272.68
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Solution
The fourth proportional to 74,264.20, 102,484.62 and 40,272.68 is: 55,576.31
Step by Step Solution
- Step 1: Write the proportion equation
74,264.20 : 102,484.62 = 40,272.68 : x - Step 2: Convert to fraction form
74,264.20/102,484.62 = 40,272.68/x - Step 3: Cross multiply
74,264.20x = 102,484.62 × 40,272.68 - Step 4: Simplify right side
74,264.20x = 4,127,330,114.61 - Step 5: Solve for x
x = 4,127,330,114.61/74,264.20 - Step 6: Final answer
x = 55,576.31
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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.