Finding the Fourth Proportional to 70,987.05, 106,533.36 and 33,558.62
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Solution
The fourth proportional to 70,987.05, 106,533.36 and 33,558.62 is: 50,362.88
Step by Step Solution
- Step 1: Write the proportion equation
70,987.05 : 106,533.36 = 33,558.62 : x - Step 2: Convert to fraction form
70,987.05/106,533.36 = 33,558.62/x - Step 3: Cross multiply
70,987.05x = 106,533.36 × 33,558.62 - Step 4: Simplify right side
70,987.05x = 3,575,112,012.90 - Step 5: Solve for x
x = 3,575,112,012.90/70,987.05 - Step 6: Final answer
x = 50,362.88
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1.5x scale
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.