Finding the Fourth Proportional to 76,902.75, 106,125.80 and 43,368.75
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Solution
The fourth proportional to 76,902.75, 106,125.80 and 43,368.75 is: 59,848.88
Step by Step Solution
- Step 1: Write the proportion equation
76,902.75 : 106,125.80 = 43,368.75 : x - Step 2: Convert to fraction form
76,902.75/106,125.80 = 43,368.75/x - Step 3: Cross multiply
76,902.75x = 106,125.80 × 43,368.75 - Step 4: Simplify right side
76,902.75x = 4,602,543,071.91 - Step 5: Solve for x
x = 4,602,543,071.91/76,902.75 - Step 6: Final answer
x = 59,848.88
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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.