Finding the Fourth Proportional to 79,558.60, 109,791.12 and 43,750.84
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Solution
The fourth proportional to 79,558.60, 109,791.12 and 43,750.84 is: 60,376.30
Step by Step Solution
- Step 1: Write the proportion equation
79,558.60 : 109,791.12 = 43,750.84 : x - Step 2: Convert to fraction form
79,558.60/109,791.12 = 43,750.84/x - Step 3: Cross multiply
79,558.60x = 109,791.12 × 43,750.84 - Step 4: Simplify right side
79,558.60x = 4,803,453,724.54 - Step 5: Solve for x
x = 4,803,453,724.54/79,558.60 - Step 6: Final answer
x = 60,376.30
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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.