Finding the Fourth Proportional to 79,416.99, 109,587.37 and 47,585.07
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Solution
The fourth proportional to 79,416.99, 109,587.37 and 47,585.07 is: 65,662.56
Step by Step Solution
- Step 1: Write the proportion equation
79,416.99 : 109,587.37 = 47,585.07 : x - Step 2: Convert to fraction form
79,416.99/109,587.37 = 47,585.07/x - Step 3: Cross multiply
79,416.99x = 109,587.37 × 47,585.07 - Step 4: Simplify right side
79,416.99x = 5,214,722,672.57 - Step 5: Solve for x
x = 5,214,722,672.57/79,416.99 - Step 6: Final answer
x = 65,662.56
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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.