Finding the Fourth Proportional to 79,415.08, 109,594.37 and 43,604.78
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Solution
The fourth proportional to 79,415.08, 109,594.37 and 43,604.78 is: 60,175.45
Step by Step Solution
- Step 1: Write the proportion equation
79,415.08 : 109,594.37 = 43,604.78 : x - Step 2: Convert to fraction form
79,415.08/109,594.37 = 43,604.78/x - Step 3: Cross multiply
79,415.08x = 109,594.37 × 43,604.78 - Step 4: Simplify right side
79,415.08x = 4,778,837,954.13 - Step 5: Solve for x
x = 4,778,837,954.13/79,415.08 - Step 6: Final answer
x = 60,175.45
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1.5x scale
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.