Finding the Fourth Proportional to 85,963.68, 118,622.88 and 48,237.12
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Solution
The fourth proportional to 85,963.68, 118,622.88 and 48,237.12 is: 66,563.30
Step by Step Solution
- Step 1: Write the proportion equation
85,963.68 : 118,622.88 = 48,237.12 : x - Step 2: Convert to fraction form
85,963.68/118,622.88 = 48,237.12/x - Step 3: Cross multiply
85,963.68x = 118,622.88 × 48,237.12 - Step 4: Simplify right side
85,963.68x = 5,722,026,097.31 - Step 5: Solve for x
x = 5,722,026,097.31/85,963.68 - Step 6: Final answer
x = 66,563.30
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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.