Finding the Fourth Proportional to 85,643.98, 118,228.36 and 49,820.92
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Solution
The fourth proportional to 85,643.98, 118,228.36 and 49,820.92 is: 68,775.95
Step by Step Solution
- Step 1: Write the proportion equation
85,643.98 : 118,228.36 = 49,820.92 : x - Step 2: Convert to fraction form
85,643.98/118,228.36 = 49,820.92/x - Step 3: Cross multiply
85,643.98x = 118,228.36 × 49,820.92 - Step 4: Simplify right side
85,643.98x = 5,890,245,665.29 - Step 5: Solve for x
x = 5,890,245,665.29/85,643.98 - Step 6: Final answer
x = 68,775.95
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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.