Finding the Fourth Proportional to 76,847.48, 106,058.58 and 42,861.32
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Solution
The fourth proportional to 76,847.48, 106,058.58 and 42,861.32 is: 59,153.67
Step by Step Solution
- Step 1: Write the proportion equation
76,847.48 : 106,058.58 = 42,861.32 : x - Step 2: Convert to fraction form
76,847.48/106,058.58 = 42,861.32/x - Step 3: Cross multiply
76,847.48x = 106,058.58 × 42,861.32 - Step 4: Simplify right side
76,847.48x = 4,545,810,736.13 - Step 5: Solve for x
x = 4,545,810,736.13/76,847.48 - Step 6: Final answer
x = 59,153.67
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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.