Finding the Fourth Proportional to 79,539.46, 109,764.53 and 43,730.08
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Solution
The fourth proportional to 79,539.46, 109,764.53 and 43,730.08 is: 60,347.55
Step by Step Solution
- Step 1: Write the proportion equation
79,539.46 : 109,764.53 = 43,730.08 : x - Step 2: Convert to fraction form
79,539.46/109,764.53 = 43,730.08/x - Step 3: Cross multiply
79,539.46x = 109,764.53 × 43,730.08 - Step 4: Simplify right side
79,539.46x = 4,800,011,459.41 - Step 5: Solve for x
x = 4,800,011,459.41/79,539.46 - Step 6: Final answer
x = 60,347.55
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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.