Finding the Fourth Proportional to 79,317.20, 118,742.04 and 69,475.70
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Solution
The fourth proportional to 79,317.20, 118,742.04 and 69,475.70 is: 104,008.79
Step by Step Solution
- Step 1: Write the proportion equation
79,317.20 : 118,742.04 = 69,475.70 : x - Step 2: Convert to fraction form
79,317.20/118,742.04 = 69,475.70/x - Step 3: Cross multiply
79,317.20x = 118,742.04 × 69,475.70 - Step 4: Simplify right side
79,317.20x = 8,249,686,348.43 - Step 5: Solve for x
x = 8,249,686,348.43/79,317.20 - Step 6: Final answer
x = 104,008.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.