Finding the Fourth Proportional to 85,695.68, 118,261.28 and 49,377.08
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Solution
The fourth proportional to 85,695.68, 118,261.28 and 49,377.08 is: 68,141.09
Step by Step Solution
- Step 1: Write the proportion equation
85,695.68 : 118,261.28 = 49,377.08 : x - Step 2: Convert to fraction form
85,695.68/118,261.28 = 49,377.08/x - Step 3: Cross multiply
85,695.68x = 118,261.28 × 49,377.08 - Step 4: Simplify right side
85,695.68x = 5,839,396,683.46 - Step 5: Solve for x
x = 5,839,396,683.46/85,695.68 - Step 6: Final answer
x = 68,141.09
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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.