Finding the Fourth Proportional to 79,195.42, 109,289.67 and 47,364.32
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Solution
The fourth proportional to 79,195.42, 109,289.67 and 47,364.32 is: 65,362.75
Step by Step Solution
- Step 1: Write the proportion equation
79,195.42 : 109,289.67 = 47,364.32 : x - Step 2: Convert to fraction form
79,195.42/109,289.67 = 47,364.32/x - Step 3: Cross multiply
79,195.42x = 109,289.67 × 47,364.32 - Step 4: Simplify right side
79,195.42x = 5,176,430,356.13 - Step 5: Solve for x
x = 5,176,430,356.13/79,195.42 - Step 6: Final answer
x = 65,362.75
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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.