Finding the Fourth Proportional to 74,478.86, 102,774.71 and 43,847.09
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Solution
The fourth proportional to 74,478.86, 102,774.71 and 43,847.09 is: 60,505.38
Step by Step Solution
- Step 1: Write the proportion equation
74,478.86 : 102,774.71 = 43,847.09 : x - Step 2: Convert to fraction form
74,478.86/102,774.71 = 43,847.09/x - Step 3: Cross multiply
74,478.86x = 102,774.71 × 43,847.09 - Step 4: Simplify right side
74,478.86x = 4,506,371,225.98 - Step 5: Solve for x
x = 4,506,371,225.98/74,478.86 - Step 6: Final answer
x = 60,505.38
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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.