Finding the Fourth Proportional to 86,365.63, 129,450.17 and 52,557.08
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Solution
The fourth proportional to 86,365.63, 129,450.17 and 52,557.08 is: 78,775.82
Step by Step Solution
- Step 1: Write the proportion equation
86,365.63 : 129,450.17 = 52,557.08 : x - Step 2: Convert to fraction form
86,365.63/129,450.17 = 52,557.08/x - Step 3: Cross multiply
86,365.63x = 129,450.17 × 52,557.08 - Step 4: Simplify right side
86,365.63x = 6,803,523,001.54 - Step 5: Solve for x
x = 6,803,523,001.54/86,365.63 - Step 6: Final answer
x = 78,775.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.