Finding the Fourth Proportional to 79,344.18, 109,495.98 and 43,533.54
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Solution
The fourth proportional to 79,344.18, 109,495.98 and 43,533.54 is: 60,076.84
Step by Step Solution
- Step 1: Write the proportion equation
79,344.18 : 109,495.98 = 43,533.54 : x - Step 2: Convert to fraction form
79,344.18/109,495.98 = 43,533.54/x - Step 3: Cross multiply
79,344.18x = 109,495.98 × 43,533.54 - Step 4: Simplify right side
79,344.18x = 4,766,747,625.17 - Step 5: Solve for x
x = 4,766,747,625.17/79,344.18 - Step 6: Final answer
x = 60,076.84
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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.