Finding the Fourth Proportional to 85,955.68, 118,619.20 and 48,230.08
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Solution
The fourth proportional to 85,955.68, 118,619.20 and 48,230.08 is: 66,557.71
Step by Step Solution
- Step 1: Write the proportion equation
85,955.68 : 118,619.20 = 48,230.08 : x - Step 2: Convert to fraction form
85,955.68/118,619.20 = 48,230.08/x - Step 3: Cross multiply
85,955.68x = 118,619.20 × 48,230.08 - Step 4: Simplify right side
85,955.68x = 5,721,013,505.54 - Step 5: Solve for x
x = 5,721,013,505.54/85,955.68 - Step 6: Final answer
x = 66,557.71
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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.