Finding the Fourth Proportional to 74,488.66, 111,670.12 and 32,336.94
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Solution
The fourth proportional to 74,488.66, 111,670.12 and 32,336.94 is: 48,478.12
Step by Step Solution
- Step 1: Write the proportion equation
74,488.66 : 111,670.12 = 32,336.94 : x - Step 2: Convert to fraction form
74,488.66/111,670.12 = 32,336.94/x - Step 3: Cross multiply
74,488.66x = 111,670.12 × 32,336.94 - Step 4: Simplify right side
74,488.66x = 3,611,069,970.23 - Step 5: Solve for x
x = 3,611,069,970.23/74,488.66 - Step 6: Final answer
x = 48,478.12
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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.