Finding the Fourth Proportional to 77,167.64, 106,490.58 and 43,176.26
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Solution
The fourth proportional to 77,167.64, 106,490.58 and 43,176.26 is: 59,582.81
Step by Step Solution
- Step 1: Write the proportion equation
77,167.64 : 106,490.58 = 43,176.26 : x - Step 2: Convert to fraction form
77,167.64/106,490.58 = 43,176.26/x - Step 3: Cross multiply
77,167.64x = 106,490.58 × 43,176.26 - Step 4: Simplify right side
77,167.64x = 4,597,864,969.63 - Step 5: Solve for x
x = 4,597,864,969.63/77,167.64 - Step 6: Final answer
x = 59,582.81
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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.