Finding the Fourth Proportional to 77,194.60, 106,530.44 and 43,202.82
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Solution
The fourth proportional to 77,194.60, 106,530.44 and 43,202.82 is: 59,620.95
Step by Step Solution
- Step 1: Write the proportion equation
77,194.60 : 106,530.44 = 43,202.82 : x - Step 2: Convert to fraction form
77,194.60/106,530.44 = 43,202.82/x - Step 3: Cross multiply
77,194.60x = 106,530.44 × 43,202.82 - Step 4: Simplify right side
77,194.60x = 4,602,415,423.84 - Step 5: Solve for x
x = 4,602,415,423.84/77,194.60 - Step 6: Final answer
x = 59,620.95
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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.