Finding the Fourth Proportional to 77,125.23, 106,432.11 and 43,133.31
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Solution
The fourth proportional to 77,125.23, 106,432.11 and 43,133.31 is: 59,523.57
Step by Step Solution
- Step 1: Write the proportion equation
77,125.23 : 106,432.11 = 43,133.31 : x - Step 2: Convert to fraction form
77,125.23/106,432.11 = 43,133.31/x - Step 3: Cross multiply
77,125.23x = 106,432.11 × 43,133.31 - Step 4: Simplify right side
77,125.23x = 4,590,769,194.58 - Step 5: Solve for x
x = 4,590,769,194.58/77,125.23 - Step 6: Final answer
x = 59,523.57
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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.