Finding the Fourth Proportional to 79,149.18, 109,225.76 and 43,339.88
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Solution
The fourth proportional to 79,149.18, 109,225.76 and 43,339.88 is: 59,808.98
Step by Step Solution
- Step 1: Write the proportion equation
79,149.18 : 109,225.76 = 43,339.88 : x - Step 2: Convert to fraction form
79,149.18/109,225.76 = 43,339.88/x - Step 3: Cross multiply
79,149.18x = 109,225.76 × 43,339.88 - Step 4: Simplify right side
79,149.18x = 4,733,831,331.31 - Step 5: Solve for x
x = 4,733,831,331.31/79,149.18 - Step 6: Final answer
x = 59,808.98
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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.