Finding the Fourth Proportional to 68,349.08, 102,538.66 and 20,970.70
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Solution
The fourth proportional to 68,349.08, 102,538.66 and 20,970.70 is: 31,460.66
Step by Step Solution
- Step 1: Write the proportion equation
68,349.08 : 102,538.66 = 20,970.70 : x - Step 2: Convert to fraction form
68,349.08/102,538.66 = 20,970.70/x - Step 3: Cross multiply
68,349.08x = 102,538.66 × 20,970.70 - Step 4: Simplify right side
68,349.08x = 2,150,307,477.26 - Step 5: Solve for x
x = 2,150,307,477.26/68,349.08 - Step 6: Final answer
x = 31,460.66
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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.