Finding the Fourth Proportional to 94,876.96, 130,911.60 and 57,153.28
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Solution
The fourth proportional to 94,876.96, 130,911.60 and 57,153.28 is: 78,860.32
Step by Step Solution
- Step 1: Write the proportion equation
94,876.96 : 130,911.60 = 57,153.28 : x - Step 2: Convert to fraction form
94,876.96/130,911.60 = 57,153.28/x - Step 3: Cross multiply
94,876.96x = 130,911.60 × 57,153.28 - Step 4: Simplify right side
94,876.96x = 7,482,027,330.05 - Step 5: Solve for x
x = 7,482,027,330.05/94,876.96 - Step 6: Final answer
x = 78,860.32
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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.