Finding the Fourth Proportional to 70,796.59, 106,181.39 and 20,878.99
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Solution
The fourth proportional to 70,796.59, 106,181.39 and 20,878.99 is: 31,314.50
Step by Step Solution
- Step 1: Write the proportion equation
70,796.59 : 106,181.39 = 20,878.99 : x - Step 2: Convert to fraction form
70,796.59/106,181.39 = 20,878.99/x - Step 3: Cross multiply
70,796.59x = 106,181.39 × 20,878.99 - Step 4: Simplify right side
70,796.59x = 2,216,960,075.60 - Step 5: Solve for x
x = 2,216,960,075.60/70,796.59 - Step 6: Final answer
x = 31,314.50
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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.