Finding the Fourth Proportional to 76,891.38, 106,035.93 and 68,368.02
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Solution
The fourth proportional to 76,891.38, 106,035.93 and 68,368.02 is: 94,281.92
Step by Step Solution
- Step 1: Write the proportion equation
76,891.38 : 106,035.93 = 68,368.02 : x - Step 2: Convert to fraction form
76,891.38/106,035.93 = 68,368.02/x - Step 3: Cross multiply
76,891.38x = 106,035.93 × 68,368.02 - Step 4: Simplify right side
76,891.38x = 7,249,466,582.96 - Step 5: Solve for x
x = 7,249,466,582.96/76,891.38 - Step 6: Final answer
x = 94,281.92
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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.