Finding the Fourth Proportional to 74,941.62, 112,463.46 and 39,905.88
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Solution
The fourth proportional to 74,941.62, 112,463.46 and 39,905.88 is: 59,885.99
Step by Step Solution
- Step 1: Write the proportion equation
74,941.62 : 112,463.46 = 39,905.88 : x - Step 2: Convert to fraction form
74,941.62/112,463.46 = 39,905.88/x - Step 3: Cross multiply
74,941.62x = 112,463.46 × 39,905.88 - Step 4: Simplify right side
74,941.62x = 4,487,953,339.14 - Step 5: Solve for x
x = 4,487,953,339.14/74,941.62 - Step 6: Final answer
x = 59,885.99
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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.