Finding the Fourth Proportional to 74,289.84, 102,457.62 and 48,776.66
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Solution
The fourth proportional to 74,289.84, 102,457.62 and 48,776.66 is: 67,270.85
Step by Step Solution
- Step 1: Write the proportion equation
74,289.84 : 102,457.62 = 48,776.66 : x - Step 2: Convert to fraction form
74,289.84/102,457.62 = 48,776.66/x - Step 3: Cross multiply
74,289.84x = 102,457.62 × 48,776.66 - Step 4: Simplify right side
74,289.84x = 4,997,540,495.15 - Step 5: Solve for x
x = 4,997,540,495.15/74,289.84 - Step 6: Final answer
x = 67,270.85
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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.