Finding the Fourth Proportional to 70,762.24, 106,160.64 and 29,221.12
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Solution
The fourth proportional to 70,762.24, 106,160.64 and 29,221.12 is: 43,838.82
Step by Step Solution
- Step 1: Write the proportion equation
70,762.24 : 106,160.64 = 29,221.12 : x - Step 2: Convert to fraction form
70,762.24/106,160.64 = 29,221.12/x - Step 3: Cross multiply
70,762.24x = 106,160.64 × 29,221.12 - Step 4: Simplify right side
70,762.24x = 3,102,132,800.72 - Step 5: Solve for x
x = 3,102,132,800.72/70,762.24 - Step 6: Final answer
x = 43,838.82
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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.