Finding the Fourth Proportional to 77,135.76, 106,444.44 and 43,602.48
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Solution
The fourth proportional to 77,135.76, 106,444.44 and 43,602.48 is: 60,169.78
Step by Step Solution
- Step 1: Write the proportion equation
77,135.76 : 106,444.44 = 43,602.48 : x - Step 2: Convert to fraction form
77,135.76/106,444.44 = 43,602.48/x - Step 3: Cross multiply
77,135.76x = 106,444.44 × 43,602.48 - Step 4: Simplify right side
77,135.76x = 4,641,241,566.21 - Step 5: Solve for x
x = 4,641,241,566.21/77,135.76 - Step 6: Final answer
x = 60,169.78
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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.