Finding the Fourth Proportional to 77,394.96, 106,759.68 and 48,669.05
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Solution
The fourth proportional to 77,394.96, 106,759.68 and 48,669.05 is: 67,134.76
Step by Step Solution
- Step 1: Write the proportion equation
77,394.96 : 106,759.68 = 48,669.05 : x - Step 2: Convert to fraction form
77,394.96/106,759.68 = 48,669.05/x - Step 3: Cross multiply
77,394.96x = 106,759.68 × 48,669.05 - Step 4: Simplify right side
77,394.96x = 5,195,892,203.90 - Step 5: Solve for x
x = 5,195,892,203.90/77,394.96 - Step 6: Final answer
x = 67,134.76
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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.