Finding the Fourth Proportional to 74,349.22, 102,603.74 and 40,357.62
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Solution
The fourth proportional to 74,349.22, 102,603.74 and 40,357.62 is: 55,694.50
Step by Step Solution
- Step 1: Write the proportion equation
74,349.22 : 102,603.74 = 40,357.62 : x - Step 2: Convert to fraction form
74,349.22/102,603.74 = 40,357.62/x - Step 3: Cross multiply
74,349.22x = 102,603.74 × 40,357.62 - Step 4: Simplify right side
74,349.22x = 4,140,842,749.50 - Step 5: Solve for x
x = 4,140,842,749.50/74,349.22 - Step 6: Final answer
x = 55,694.50
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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.