Finding the Fourth Proportional to 70,976.84, 106,539.11 and 52,277.99
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Solution
The fourth proportional to 70,976.84, 106,539.11 and 52,277.99 is: 78,471.38
Step by Step Solution
- Step 1: Write the proportion equation
70,976.84 : 106,539.11 = 52,277.99 : x - Step 2: Convert to fraction form
70,976.84/106,539.11 = 52,277.99/x - Step 3: Cross multiply
70,976.84x = 106,539.11 × 52,277.99 - Step 4: Simplify right side
70,976.84x = 5,569,650,265.80 - Step 5: Solve for x
x = 5,569,650,265.80/70,976.84 - Step 6: Final answer
x = 78,471.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.